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#4 Flat Washers
Flat Washers, or just Plain Washers, are a flat annulus or ring, often of metal, used to spread the load from the head of a screwed fastening to the base material. Flat washers are used to increase the bearing surface of a nut or fastener's head thus spreading the clamping force over a larger area.
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| Buy Flat Washers from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | #4 x .115 | #4 flat .115 idx.250 odx.062 tk natural nylon | 80 |
|
| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .189 x .006 | .125 x .189 x .006 flat washer 18-8ss | 120 |
|
| JET FITTING | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | #4 x .187 x .016 | #4x.187x.016 flat washer stainless steel 18-8 passivated mfg seastrom b18.22.1 | 8000 |
|
| TSF | TX | Flat Washer | Nylon (Polyamide) | Plain | .125 x .182 x .120 | flat washer nylon .120 x .182 x .125 | 4600 |
|
| MAINSOURC | NH | Flat Washer | Steel | Plain | .120 x .187 x .030 | fw .120 x .187 x .030 ny | 141 |
|
| MAINSOURC | NH | Flat Washer | Steel | Plain | .115 x .209 x .032 | nas620c4p ( #4 .115x.209x.032 ss blk) | 1750 |
|
| RCFast | AZ | Flat Washer | Steel | Plain | .115 x .209 x .032 | .115x.209x.032 flat stainless nas620c4 | 2950 |
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| RCFast | AZ | Flat Washer | Steel | Plain | .115 x .209 x .016 | .125x.209x.016 flat stainless nas620c4l | 3900 |
|
| YANKEE | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x .210 x .01 .02 | military spec #4 x .210 od x .01-.02 tk flat washer 300 series stainless steel | 3808 |
|
| JET FITTING | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x .209 x .032 | #4x.209x.032 flat washer stainless steel 18-8 b18.22.1 | 4300 |
|
| JET FITTING | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x .209 x .032 | #4x.209x.032 flat washer stainless steel 18-8 b18.22.1 | 4200 |
|
| JET FITTING | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x .209 x .016 | #4x.209x.016 flat washer stainless steel 18-8 b18.22.1 | 2000 |
|
| JET FITTING | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | #4 x .209 x .016 | #4x.209x.016 flat washer stainless steel 18-8 black oxide and wax b18.22.1 | 1550 |
|
| JET FITTING | CA | Flat Washer | Steel | Plain | .115 x .209 x .032 | #4x.209x.032 flat washer stainless steel 18-8 b18.22.1 | 1196 |
|
| JET FITTING | CA | Flat Washer | Steel | Plain | .115 x .209 x .016 | washer flat #4x.209x.016 stainless steel b18.22.1 | 4696 |
|
| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .115 x .209 x .032 | 115 x 209 x 032 18-8 304 flat 304ss NAS620C4 b18.22.1 | 1000 |
|
| TSF | TX | Flat Washer | Steel | Plain | .115 x .209 x .032 | flat washer ss .115id x .209 od x .032 | 2570 |
|
| TSF | TX | Flat Washer | Steel | Plain | .115 x .209 x .016 | flat washer ss light pattern .115 x .209 x .014-.018 | 10806 |
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| TSF | TX | Flat Washer | Steel | Plain | .115 x .209 x .016 | washer | 125 |
|
| YANKEE | NH | Flat Washer | Steel | Plain | .115 x .209 x .032 | nas620c4 #4 flat .115id .209od .032tk 300 series stainless | 539 |
|
| YANKEE | NH | Flat Washer | Steel | Plain | .115 x .209 x .016 | nas620c4lp #4 flat .115id .209od .016tk 300 series stainless w/black oxide | 1245 |
|
| YANKEE | NH | Flat Washer | Steel | Plain | .115 x .209 x .032 | nas620c4p #4 flat 209id .115od .032tk 300 series stainless w/black oxide | 3275 |
|
| JHP Fasteners | TX | Flat Washer | Steel | Zinc/Yellow | .120 x .220 x .030 | flat .120x.220x.030 steel zinc yellow | 1552 |
|
| YANKEE | NH | Flat Washer | Steel | Nickel | .124 x .219 x .021 | flat washer .124x.219x.021-nickel plated steel | 388 |
|
| QFC | TX | Flat Washer | Steel | Zinc/Yellow | .125 x .219 x .032 | .125idx.219odx.032thick steel steel zinc yellow sorted to 50ppm b18.22.1 | 1634900 |
|
| QFC | TX | Flat Washer | Steel | Zinc/Yellow | .125 x .219 x .032 | .125idx.219odx.032thick steel steel zinc yellow sorted to 50ppm b18.22.1 | 491863 |
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| YANKEE | NH | Flat Washer | Steel | Zinc/Clear | .130 x .220 x .032 | flat - | 1450 |
|
| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | .125 x .222 x .100 | flat .125id .222od .100tk- | 2056 |
|
| MAINSOURC | NH | Flat Washer | Fiber | Plain | .115 x .220 x .02 | #4 flt wshr (.115 x .220 x .02) g10 fiberglass | 9 |
|
| RCFast | AZ | Flat Washer | Aluminum | Plain | .128 x .238 x .032 | .128x.238x.032 flat alum nas620a5 | 500 |
|
| Hayes | CA | Flat Washer | Brass | Plain | .122 x .228 x .008 | .122 x .228 x .008 flat washer brass | 1150 |
|
| JET FITTING | CA | Flat Washer | Fiber | Plain | #4 x .228 x .032 | #4x.228x.032 flat washer fibre b18.22.1 | 11670 |
|
| American | NY | Flat Washer | Steel | Plain | #4 x .235 x .032 | flat | 200000 |
|
| MAINSOURC | NH | Flat Washer | Steel | Plain | .117 x .235 x .030 | fw .117 x .235 x .030 z | 1440 |
|
| MAINSOURC | NH | Flat Washer | Plastic | Plain | .128 x .250 x .030 | #4 flt wshr (.128x.250x.030) delrin | 25 |
|
| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain | .125 x .250 x .016 | #4 flt wshr (.125x.250x.016) nylon | 265 |
|
| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain | .125 x .250 x .062 | #4 flt wshr (.125x.250x.062) nylon | 3386 |
|
| Set Screw | IL | Flat Washer | Nylon (Polyamide) | Plain | .115 x .250 x .062 | .250 odx.115 idx.062 thick | inquire |
|
| American | NY | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x 1/4 x .028 | f/w 18-8 304 a2 st/st | 1800 |
|
| JHP Fasteners | TX | Flat Washer | Nylon (Polyamide) | Plain | .115 x .250 x .093 | flat .115x.250x.093 nylon | 1100 |
|
| JHP Fasteners | TX | Flat Washer | Nylon (Polyamide) | Plain | .115 x .250 x .093 | flat .115x.250x.093 nylon black | 1500 |
|
| JHP Fasteners | TX | Flat Washer | Nylon (Polyamide) | Plain | .120 x .250 x .062 | flat .120x.250x.062 nylon | 65 |
|
| JHP Fasteners | TX | Flat Washer | Steel | Zinc/Clear | .125 x .250 x .032 | flat narrow type-b .125x.250x.032 steel zinc | 1000 |
|
| JHP Fasteners | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .128 x .245 x .020 | flat .128x.245x.020 s/s | 315 |
|
| Ababa | CA | Flat Washer | Nylon (Polyamide) | Plain | #4 x 1/4 | #4 x 1/4 f/w .032 thk nylon b18.22.1 | 2100 |
|
| Ababa | CA | Flat Washer | Nylon (Polyamide) | Plain | #4 x 1/4 | #4 x 1/4 f/w .032 thk nylon b18.22.1 | 400 |
|
| Ababa | CA | Flat Washer | Nylon (Polyamide) | Plain | #4 x 1/4 | #4 x 1/4 f/w .047 thk nylon b18.22.1 | 90 |
|
| Ababa | CA | Flat Washer | Nylon (Polyamide) | Plain | #4 x 1/4 | #4 x 1/4 flat washer .062 thk black nylon b18.22.1 | 600 |
|
| Ababa | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .250 x .022 | .125 x .250 x .022 (#4) f/w s/s b18.22.1 | 2276 |
|
| Ababa | CA | Flat Washer | Nylon (Polyamide) | Plain | #4 x 1/4 | #4 x 1/4 f/w .062 thk nylon b18.22.1 | 2239 |
|
| Hayes | CA | Flat Washer | Steel | Zinc/Clear | .125 x .250 x .030 | .125 x .250 x .030 flat washer steel zinc | 500 |
|
| Hayes | CA | Flat Washer | Steel | Zinc/Yellow | .125 x .250 x .030 | .125 x .250 x .030 flat washer steel zinc ii | 1920 |
|
| Hayes | CA | Flat Washer | Aluminum | Plain | .125 x .255 x .050 | .125 x .255 x .050 flat washer alum | 2470 |
|
| American | NY | Flat Washer | Steel | Zinc/Clear | .128 x .251 x .034 | flat plate | 19500 |
|
| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | #4 x 1/4 | #4 x 1/4 flat washer .062tk nylon | 1783 |
|
| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | #4 x .250 x .02 .04 | #4 (.120 id) x .250 od x .02-.04 tk flat washer nylon black | 300 |
|
| American | NY | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x 1/4 x .028 | f/w 18-8 304 a2 st/st | 1800 |
|
| JET FITTING | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .128 x .245 x .048 | .128x.245x.048 flat washer stainless steel 18-8 passivated b18.22.1 | 1290 |
|
| American | NY | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x 1/4 x .025 | flat 18-8 304 | 10500 |
|
| American | NY | Flat Washer | Steel | Zinc/Clear | #4 x .250 x .032 | flat zp | 86640 |
|
| American | NY | Flat Washer | Steel | Zinc/Clear | #4 x .250 x .020 | flat zp | 2500 |
|
| QFC | TX | Flat Washer | Steel | Zinc/Clear | .125 x .250 | .125idx.250 od flat steel zinc b18.22.1 | 503 |
|
| QFC | TX | Flat Washer | Steel | Zinc/Clear | .125 x .250 | .125idx.250 od flat steel zinc b18.22.1 | 7614 |
|
| QFC | TX | Flat Washer | Resin (Phenolic, etc.) | Plain | .125 x .250 x .016 | .125x.250x.016 phenolic b18.22.1 | 8625 |
|
| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .250 x .017 | .125x.250x.017/.028 flat 18-8 304 b18.22.1 | 10000 |
|
| TSF | TX | Flat Washer | Nylon (Polyamide) | Plain | #4 x .250 x .032 | nylon flat washer natural #4 x .250 x .032 | 2865 |
|
| TSF | TX | Flat Washer | Nylon (Polyamide) | Plain | #4 x .250 x .032 | flat washer nylon black #4 x .250 x.032 | 870 |
|
| TSF | TX | Flat Washer | Nylon (Polyamide) | Plain | #4 x .250 x .062 | flat washer nylon natural #4 x .250 x .062 | 3000 |
|
| TSF | TX | Flat Washer | Nylon (Polyamide) | Plain | .115 x .250 x .062 | flat washer blk nylon .115 x .250 x .062 | 25000 |
|
| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .250 x .02 | flat washer stainless steel .125 x .250 x .028/.036 | 4000 |
|
| MAINSOURC | NH | Flat Washer | Steel | Plain | .115 x .250 x .060 | fw .115 x .250 x .060 al | 450 |
|
| MAINSOURC | NH | Flat Washer | Steel | Plain | .115 x .250 x .060 | fw .115 x .250 x .060 ny | 100 |
|
| MAINSOURC | NH | Flat Washer | Steel | Plain | .115 x .250 x .062 | fw .115 x .250 x .062 ny | 488 |
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| MAINSOURC | NH | Flat Washer | Steel | Zinc/Yellow | .120 x .250 x .020 | fw .120 x .250 x .020 zy | 9420 |
|
| MAINSOURC | NH | Flat Washer | Steel | Black Oxide | .120 x .250 x .0312 | fw .120 x .250 x .0312 blk oxide | 854 |
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| MAINSOURC | NH | Flat Washer | Steel | Plain | .120 x .250 x .062 | fw .120 x .250 x .062 ny | 600 |
|
| MAINSOURC | NH | Flat Washer | Steel | Zinc/Yellow | .123 x .250 x .022 | fw .123 x .250 x .022 zy | 3625 |
|
| JHP Fasteners | TX | Flat Washer | Fiber | Plain | .120 x .270 x .016 | fiber .120 id x.270odx.016thk | 827 |
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| MAINSOURC | NH | Flat Washer | Nylon (Polyamide) | Plain | .120 x .280 x .030 | #4 flt wshr (.120x.280x.030) nylon | 600 |
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| JHP Fasteners | TX | Flat Washer | Brass | Plain | .120 x .280 x .020 | flat .120x.280x.020 brass | 2100 |
|
| JHP Fasteners | TX | Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | .120 x .281 x .031 | .120x.281x.031 teflon | 260 |
|
| Hayes | CA | Flat Washer | Plastic | Plain | .120 x .281 x .031 | .120 x .281 x .031 flat washer acetal plastic | 4121 |
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| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | .125 x .281 x .031 | flat washer.125id .281od .031tk-nylon | 1370 |
|
| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | .130 x .275 x .020 | flat washer.130id .275od .020tk-nylon | 461 |
|
| YANKEE | NH | Flat Washer | Brass | Plain | #4 x 9/32 | #4 x 9/32 std flat washer brass | 1025 |
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| JET FITTING | CA | Flat Washer | Steel | Zinc/Clear | #4 x .280 x .025 | #4x.280x.025 flat washer steel zinc b18.22.1 | 17175 |
|
| JHP Fasteners | TX | Flat Washer | Nylon (Polyamide) | Plain | .125 x .281 x .047 | flat .281 od x .125 id x .047th nylon MS51859-2-TXG | 116 |
|
| TSF | TX | Flat Washer | Nylon (Polyamide) | Plain | .120 x .281 x .040 | flat washer nylon .120 x .281 x .040 natural color | 550 |
|
| TSF | TX | Flat Washer | Nylon (Polyamide) | Plain | .120 x .281 x .020 | flat washer nylon .120 x .281 x .020 natural | 900 |
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| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | .125 x .280 x .020 | flat .125id .280od .020tk- | 2790 |
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| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | .125 x .281 x .031 | flat .125id .281od .031tk- | 2036 |
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| MAINSOURC | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .118 x .280 x .032 | fw .118 x .280 x .032 ss | 4990 |
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| B & K FAST | PA | Flat Washer | Brass | Plain | .120 x .297 x .003 | .120 x .297 x .003 brass flat washers b18.22.1 | 4000 |
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| MAINSOURC | NH | Flat Washer | Steel | Plain | .125 x .313 x .031 | nas1515h04l ( .125x.312x.031 nylon) | 2448 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .312 x .032 | .125x.312x.032 flat 18-8 304 an960c4 | 1000 |
|
| JHP Fasteners | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | .125 x .312 x .031 | flat .125x.312x.031 18-8 304 black oxide | 2000 |
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| JHP Fasteners | TX | Flat Washer | Fiber | Plain | .128 x .313 x .031 | .128x.313x.031 g-10/fr4 fiberglass | 30 |
|
| Ababa | CA | Flat Washer | Nylon (Polyamide) | Plain | #4 x 5/16 | #4 x 5/16 f/w .062 thk nylon b18.22.1 | 1040 |
|
| Ababa | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .312 x .032 | .125 x .312 x .032 (#4) f/w s/s b18.22.1 | 3247 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .313 x .078 | .125x.313x.078 flat 18-8ss | 12100 |
|
| Hayes | CA | Flat Washer | Steel | Plain | .125 x .312 x .015 | .125 x .312 x .015 flat washer steel | 7000 |
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| Hayes | CA | Flat Washer | Steel | Zinc/Clear | .125 x .312 x .040 | .125 x .312 x .040 flat washer steel zinc | 7393 |
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| JET FITTING | CA | Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | #4 x .312 x .030 | #4x.312x.030 flat washer teflon b18.22.1 | 3355 |
|
| JET FITTING | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x 5/16 x 0.016 | whr flat 1/4 ss .500x.032 rohs compliant per an960l b18.22.1 | 5000 |
|
| JET FITTING | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x .312 x .032 | washer flat #4x.312x.032 stainless steel b18.22.1 | 4153 |
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| RCFast | AZ | Flat Washer | Steel | Plain | .125 x .313 x .016 | .125x.312x.016 flat stainless NAS1149CN416R | 750 |
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| JHP Fasteners | TX | Flat Washer | Steel | Plain | .125 x .313 x .016 | flat size 4 thickness 1/64 aluminum alloy (2024-t3) chemical treated finish (gold colored) NAS1149DN416J | 208 |
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| JHP Fasteners | TX | Flat Washer | Fiber | Plain | #4 x 5/16 | non-metalic NAS549FL4 | 524 |
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| American | NY | Flat Washer | Steel | Zinc/Clear | #4 x .312 x .031 | flat zp | 200 |
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| QFC | TX | Flat Washer | Resin (Phenolic, etc.) | Plain | .125 x .312 x .031 | .125x.312x.031 phenolic b18.22.1 | 1593 |
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| QFC | TX | Flat Washer | 316, 317, A4 Stainless | Plain | .125 x .317 x .060 | .125x.317x.060 stainless steel flat b18.22.1 | 5000 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .115 x .307 x .006 | .174x.375x.031 flat 18-8 (#8) 304ss AN960-C8 b18.22.1 | 950 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .125 x .312 x .032 | .125 x .312 x .016 flat 18-8 304 304ss AN960C4L b18.22.1 | 3000 |
|
| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .125 x .312 x .032 | flat washer stainless | 880 |
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| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .115 x .307 x .006 | flat washer stainless steel .174 x .375 x .032 | 4200 |
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| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x 5/16 x .03 | flat washer 18-8 stainless steel #4 x 5/16 x .03 | 4800 |
|
| TSF | TX | Flat Washer | Steel | Zinc/Clear | #4 x .312 x .032 | flat washer zinc plated #4 x .312 x .032 | 16700 |
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| YANKEE | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x 5/16 | od flat 18-8 304 (ms15795-804 equiv.) .025-.040tk | 16535 |
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| MAINSOURC | NH | Flat Washer | Steel | Plain | .125 x .313 x .016 | an960xc4l | 253 |
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| American | NY | Flat Washer | Steel | Cadmium | #4 x 21/64 x 1/16 | flat cad pl | 6400 |
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| Set Screw | IL | Flat Washer | Steel | Zinc/Clear | .125 x .375 x .040 | .125 idx.375 odx.040 thk flat type-b per print | inquire |
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| Ababa | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x 3/8 | #4 x 3/8 f/w s/s b18.22.1 | 2600 |
|
| American | NY | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 x 3/8 | od flat 18-8 304 | 15000 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .125 x .375 x .040 | .125x.375x.040 flat 18-8ss | 200 |
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| American | NY | Flat Washer | Steel | Plain | #4 x .375 x .025 | flat | 3000 |
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| American | NY | Flat Washer | Steel | Nickel | #4 x .375 x .032 | flat nickle pl | 2500 |
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| American | NY | Flat Washer | Steel | Zinc/Clear | #4 x .375 x .035 | flat zp | 5000 |
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| American | NY | Flat Washer | Steel | Cadmium | #4 x .375 x .040 .045 | cad pl | 14000 |
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| American | NY | Flat Washer | Steel | Zinc/Clear | #4 x .375 x .050 | flat zp | 16000 |
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| American | NY | Flat Washer | Steel | Plain | #4 x .375 x .050 | flat black | 2000 |
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| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | .125 x .375 x .047 | flat .125id .375od .047tk- | 572 |
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| Hayes | CA | Flat Washer | Silicon Bronze | Plain | .128 x .372 x .062 | .128x.372x.062 flat bronze | 44 |
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| YANKEE | NH | Flat Washer | Copper | Plain | .130 x .410 | flat washer .130 x .410 x. 040-copper | 300 |
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| American | NY | Flat Washer | Steel | Plain | #4 x .406 x .045 | flat | 5000 |
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| Hayes | CA | Flat Washer | Nylon (Polyamide) | Plain | .128 x .440 x .020 | .128x.440x.020 flat nylon | 1500 |
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| American | NY | Flat Washer | Steel | Plain | #4 x 7/16 | phil round hd type-bf type-black | 12000 |
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| Hayes | CA | Flat Washer | Aluminum | Plain | .128 x .500 x .030 | .128x.500x.030 flat alum | 50 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | .133 x .500 x .030 | .133 x .500 x .030 flat washer 18-8ss pass | 2380 |
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| Hayes | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | .120 x .500 x .030 | .120 x .500 x .030 flat washer 18-8ss | 115 |
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| Hayes | CA | Flat Washer | Nylon (Polyamide) | Plain | .120 x .500 x .031 | .120 x .500 x .031 flat washer nylon | 21392 |
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| American | NY | Flat Washer | Steel | Copper | #4 x .500 x .032 | flat pl | 45000 |
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| American | NY | Flat Washer | Steel | Black Oxide | #4 x .500 x .050 | flat black ox | 70000 |
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| American | NY | Flat Washer | Steel | Copper | #4 x 1/2 x .030 | flat pl | 10000 |
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| Hayes | CA | Flat Washer | Steel | Plain | .125 x .625 x .030 | .125x.625x.030 flat steel | 9646 |
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| American | NY | Flat Washer | Steel | Plain | #4 x .625 x .032 | flat | 16450 |
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| American | NY | Flat Washer | Steel | Plain | #4 x .625 x .045 | flat | 9940 |
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| American | NY | Flat Washer | Steel | Plain | #4 x 7/8 | phil type-a black | 1000 |
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| Jackson | MS | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat 18-8 s/s | 2267 |
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| MAINSOURC | NH | Flat Washer | 316, 317, A4 Stainless | Plain | #4 | #4 flt wshr type-b narrow 316 ss | 30 |
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| MAINSOURC | NH | Flat Washer | 316, 317, A4 Stainless | Plain | #4 | #4 flt wshr tbn dfars 316 ss | 270 |
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| MAINSOURC | NH | Flat Washer | 316, 317, A4 Stainless | Plain | #4 | #4 flt wshr tbr dfars 316 ss | 300 |
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| Jay-Cee | MI | Flat Washer | Copper | Plain | #4 | rivet burrs .256x.875x.062 | inquire |
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| Jay-Cee | MI | Flat Washer | Steel | Plain | #4 | riveting burrs 5/8x.246x.065 | 107615 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | .125x.250x.022 flat 18-8 304 ms15795-803 | 4300 |
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| Set Screw | IL | Flat Washer | Brass | Plain | #4 | flat (.116x.250x.040) | inquire |
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| Set Screw | IL | Flat Washer | Brass | Plain | #4 | flat | inquire |
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| Ababa | CA | Flat Washer | Steel | Plain | #4 | #4 lite series f/w steel yel plt (5/16 od) b18.22.1 | 200 |
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| Ababa | CA | Flat Washer | 316, 317, A4 Stainless | Plain | #4 | #4 f/w 316 s/s b18.22.1 | 3200 |
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| Ababa | CA | Flat Washer | Brass | Plain | #4 | #4 f/w brass b18.22.1 | 94 |
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| Ababa | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 f/w s/s b18.22.1 | 17570 |
|
| Ababa | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 f/w s/s b18.22.1 | 1400 |
|
| Ababa | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 f/w lt pat s/s b18.22.1 | 354 |
|
| Ababa | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #620 f/w #4 s/s (.115 x .209 x .032) b18.22.1 | 1000 |
|
| Ababa | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 lght flat washer s/s b18.22.1 | 1500 |
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| Ababa | CA | Flat Washer | Steel | Plain | #4 | #4 reg series f/w steel yel plt (5/16 od) b18.22.1 | 1200 |
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| YANKEE | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 flat washer special size stain steel | 2000 |
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| JET FITTING | CA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | washer flat #4 x.250x.022 stainless steel 18-8 b18.22.1 | 4500 |
|
| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #10 flat 18-8 304 (#10x7/16x.032 an960l) | 3400 |
|
| American | NY | Flat Washer | Steel | Nickel | #4 | flat nickle pl | 300 |
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| B & K FAST | PA | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 flat washers stainless 18-8 b18.22.1 | 903801 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | #4 | #4 type-b narrow flat triv zinc b18.22.1 | 7500 |
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| QFC | TX | Flat Washer | Steel | Zinc/Clear | #4 | #4 type-b narrow flat triv zinc b18.22.1 | 908 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 type-b narrow flat 18-8 s/s b18.22.1 | 240 |
|
| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 type-b narrow flat 18-8 s/s b18.22.1 | 12860 |
|
| QFC | TX | Flat Washer | Steel | Zinc/Clear | #4 | #4 type-b regular flat tri-zinc b18.22.1 | 1000 |
|
| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 type-b regular flat 18-8 b18.22.1 | 1000 |
|
| QFC | TX | Flat Washer | Steel | Zinc/Yellow | #4 | #4 type-b wide flat zinc/yellow b18.22.1 | 390 |
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| QFC | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | #4 | .125x.312x.025-.040 flat 18-8 (#4) 304ss MS15795-804 b18.22.1 | 2000 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat 18-8 304 | 130 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat 18-8 304 | 7400 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat 18-8 304 | 900 |
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| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | #4 | flat | 4000 |
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| RCFast | AZ | Flat Washer | Aluminum | Plain | #4 | flat alum (see fw-prbu.125a) | 1300 |
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| RCFast | AZ | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat 18-8 304 | 4900 |
|
| RCFast | AZ | Flat Washer | Nylon (Polyamide) | Plain | #4 | flat rohs | 3000 |
|
| METRO IND | OH | Flat Washer | Steel | Black Oxide | #4 | #4 tool slotted flat hardened black oxide | 600 |
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| Jackson | MS | Flat Washer | Brass | Plain | #4 | # 4 flat washer brass | 38 |
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| METRO IND | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | 804 x #4 flat ms15795 s/s 304ss MS15795-804 | 200 |
|
| METRO IND | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat s/s | 3348 |
|
| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat washer stainless steel #4 (.115 x .209 x .032) | 9334 |
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| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | flat washer stainless steel black oxide .125 id (#4) x .312 (5/16 ) od x .0312 (1/32 ) thk | 200 |
| |
| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat washer ss-300 .125 +/-.003 id x .250 od x .017-.028 thk | 9000 |
|
| TSF | TX | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | flat washer ss .125 x .312 x .025/.040 | 3850 |
|
| TSF | TX | Flat Washer | Nylon (Polyamide) | Plain | #4 | washer | 875 |
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| YANKEE | NH | Flat Washer | Nylon (Polyamide) | Plain | #4 | (.115 id)x.250 odx.032 tk flat 6/6 | 16225 |
|
| YANKEE | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | ms15795-803 #4 flat 300 series 18-8 304 (.125 .250 .023) 304ss | 3084 |
|
| YANKEE | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | #4 | ms15795-803b flat #4-.125id .250od .023tk 300 series 18-8 304 w/ 304ss | 14163 |
|
| YANKEE | NH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | ms15795-804 flat #4 (.125id .312od .032tk) 300 series 18-8 304 304ss | 8715 |
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| METRO IND | OH | Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | thick flat s/s | 200 |
|
| Hayes | CA | Flat Washer | Steel | Plain | #4 | nas549gl4 #4 x 1/4 glass-epoxy washer | 395 |
|
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