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3/8 USS Flat Washers (ASME B18. 22.1)
USS Flat Washers were among the first known commercial flat washers in the U.S.A. They are characterized as having a loose fit, and have a larger outside diameter than SAE Flat washers. The USS designation was derived from the name “Unified Standard Series.” At the time, coarse threaded bolts were called USS bolts.
90 results, (click on any line for more information)
| Buy USS Flat Washers from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Irwin Ind | Ont | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flatwasher steel zinc trivalent clear b18.22.1 | 8053 |
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| Irwin Ind | Ont | USS Flat Washer | Steel | Cadmium | 3/8 | 3/8 uss plate flatwashers cad dich to qqp 416 type 11 cl 3 b18.22.1 | 500 |
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| GLF | OH | USS Flat Washer | Grade 8 | Plain | 3/8 | 3/8 uss flat gr 8 stl pln b18.22.1 () () () | 436 |
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| GLF | OH | USS Flat Washer | Grade 8 | Zinc/Yellow | 3/8 | 3/8 uss flat gr 8 stl zy b18.22.1 () () () | 14495 |
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| GLF | OH | USS Flat Washer | Steel | Plain | 3/8 | 3/8 uss flat stl pln b18.22.1 () () () | 26421 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat stl zc b18.22.1 () () () | 13453 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss flat stl zn yel rohs b18.22.1 () () () | 14600 |
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| GLF | OH | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 uss flat stl hdg b18.22.1 () () () | 5115 |
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| GLF | OH | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 3/8 uss flat 18-8 s/s b18.22.1 () () () | 4584 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss flat thru-hard stl zy domestic b18.22.1 () () () | 1910 |
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| GLF | OH | USS Flat Washer | Steel | Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.) | 3/8 | 3/8 uss flat thru-hard stl magni b18.22.1 () () () | 17528 |
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| GLF | OH | USS Flat Washer | Nylon (Polyamide) | Plain | 3/8 | 3/8 uss flat nyl b18.22.1 () () () | 41322 |
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| GLF | OH | USS Flat Washer | 316, 317, A4 Stainless | Plain | 3/8 | 3/8 uss flat 316 s/s domestic b18.22.1 () () () | 100 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss f/w hrd stl yel znc (1 od) b18.22.1 | 2060 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 3/8 x 25 | 3/8 uss f/w 25/pkg hrd stl yel znc (1 od) b18.22.1 | 8 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss f/w trivalent hrd stl yel znc (1 od) b18.22.1 | 6807 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss f/w extra thick hrd stl yel znc (1 od) b18.22.1 | 4562 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 3/8 | 3/8 uss f/w al-2000 (black) stl (1 od) b18.22.1 | 2304 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 3/8-1 | 3/8 uss f/w stl hdg (1 od) b18.22.1 | 6373 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 3/8-1 | 3/8 uss f/w stl pln (1 od) b18.22.1 | 1510 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8-1 | 3/8 uss f/w stl znc (1 od) b18.22.1 | 30050 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8-100 | 3/8 uss f/w (100/bag) stl znc (1 od) b18.22.1 | 2491 |
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| ASMC | IL | USS Flat Washer | Grade 8 | Zinc/Yellow | 3/8 | gr8 flat USS pattern-usa med carb b18.22.1 | 1,950 |
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| ASMC | IL | USS Flat Washer | Grade 8 | Zinc/Clear | 3/8 | gr8 flat USS pattern-usa med carb zp b18.22.1 | 2,360 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss f/w hrd stl yel znc (1 od) b18.22.1 | 500 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 3/8 x 25 | 3/8 uss f/w 25/pkg hrd stl yel znc (1 od) b18.22.1 | 7 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 3/8-1 | 3/8 uss f/w stl hdg (1 od) b18.22.1 | 700 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8-1 | 3/8 uss f/w stl znc (1 od) b18.22.1 | 6400 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8-100 | 3/8 uss f/w (100/bag) stl znc (1 od) b18.22.1 | 200 |
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| 3Q, Inc. | IL | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.1 | 284710 |
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| JET FITTING | CA | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 uss f/w stl hdg 345003 b18.22.1 | 2184 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss f/w stl zinc 344004 b18.22.1 | 25583 |
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| JET FITTING | CA | USS Flat Washer | Steel | Black Oxide | 3/8 x .375 | 3/8 (.375) uss flat steel black oxide 37WUSSB b18.22.1 | 6914 |
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| General F | MI | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss fw zn b18.22.1 | 30180 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 3/8 | 3/8 uss flat plain each 67 .438x1.00x.083 b18.22.1 | 70 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 3/8 | 3/8 uss flat plain each 67 .438x1.00x.083 b18.22.1 | 2950 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 3/8 | 3/8 plain uss hard b18.22.1 | 3000 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss flat zinc yellow b18.22.1 | 1241 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss flat zinc yellow b18.22.1 | 1662 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat zinc b18.22.1 | 3220 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat zinc b18.22.1 | 15508 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat zinc b18.22.1 | 98 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 uss flat galvanized b18.22.1 | 3077 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 uss flat hdg dom. b18.22.1 | 848 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 uss flat hdg dom. b18.22.1 | 405 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 uss flat hdg dom. b18.22.1 | 2500 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 hdg uss each 64 b18.22.1 | 3242 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 hdg uss each 64 b18.22.1 | 32 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 hdg uss each 64 b18.22.1 | 2518 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 hdg uss each 64 b18.22.1 | 86 |
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| QFC | TX | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 3/8 uss flat 18-8 s/s steel domestic b18.22.1 | 590 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 x .438 x 1.00 | 3/8 uss flat zinc .438x1.00x.083 b18.22.1 | 656 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 x .438 x 1.00 | 3/8 uss flat zinc .438x1.00x.083 b18.22.1 | 3250 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 x .438 x 1.00 | 3/8 uss flat zinc .438x1.00x.083 b18.22.1 | 18820 |
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| B & K FAST | PA | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 uss flat washers hd galv b18.22.1 | 142.15 |
|
| B & K FAST | PA | USS Flat Washer | Grade 8 | Zinc/Clear | 3/8 | 3/8 uss thru-hard flat washers gr 8 zinc b18.22.1 | 1.45 |
|
| B & K FAST | PA | USS Flat Washer | Grade 8 | Zinc/Yellow | 3/8 | 3/8 uss thru-hard flat washers gr.8 zy b18.22.1 | 76.8 |
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| B & K FAST | PA | USS Flat Washer | Steel | Plain | 3/8 | 3/8 uss flat washers plain b18.22.1 | 20.955 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat washers zinc b18.22.1 | 106.137 |
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| OSSCO | RI | USS Flat Washer | Brass | Plain | 3/8 | 3/8 flat uss large od brass b18.22.1 | 5 |
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| OSSCO | RI | USS Flat Washer | Aluminum | Plain | 3/8 | 3/8 flat uss alum b18.22.1 | 12 |
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| QFC | TX | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 3/8 uss flat washer 18-8 s/s b18.22.1 | 3000 |
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| QFC | TX | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 3/8 uss flat washer 304 ss b18.22.1 | 611 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat washer zinc b18.22.1 | 44 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 uss flat washer zinc/yellow b18.22.1 | 350 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8 x 1.00 x .100 | 3/8x1.00x.100 flat washer steel zinc plated uss b18.22.1 | 5420 |
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| JET FITTING | CA | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 washers flat washers uss steel flat washer hdg (inch) b18.22.1 | 222 |
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| Wurth | Ont | USS Flat Washer | Steel | Galvanized | 3/8 | wsh flt uss a w st (hdg) 3/8 b18.22.1 | 319 |
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| THRDFAST | FL | USS Flat Washer | Grade 8 | Zinc/Yellow | 3/8 | gr8 USS f/w z&y domestic b18.22.1 | 76 |
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| THRDFAST | OK | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | USS f/w & b18.22.1 | 2,275 |
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| THRDFAST | AL | USS Flat Washer | Grade 8 | Zinc/Clear | 3/8 | 3/8 gr 8 USS f/w b18.22.1 | 3,000 |
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| THRDFAST | AL | USS Flat Washer | Steel | Cadmium | 3/8 | USS f/w domestic b18.22.1 | 94 |
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| KBS | TN | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 uss flat/w plated b18.22.1 | 11,088 |
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| KBS | TN | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 !hardened! uss flat/w .098min thick yellowznc b18.22.1 | 47,060 |
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| KBS | TN | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 !hardened! uss flat/w mc2 .090thick yellowznc b18.22.1 | 9,750 |
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| THRDFAST | AL | USS Flat Washer | Steel | Galvanized | 3/8 | USS f/w mech b18.22.1 | 78761 |
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| THRDFAST | MS | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | USS f/w z&y domestic b18.22.1 | 40 |
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| THRDFAST | OK | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | USS f/w z&y domestic b18.22.1 | 2 |
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| THRDFAST | OK | USS Flat Washer | Steel | Cadmium | 3/8 | USS f/w b18.22.1 | 25 |
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| THRDFAST | AL | USS Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 3/8 | USS f/w teflon blue b18.22.1 | 1058 |
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| WSB | KY | USS Flat Washer | Steel | Galvanized | 3/8 | washer flat uss a w st (hdg) 3/8 b18.22.1 | 66,804 |
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| MMF | MI | USS Flat Washer | Steel | Plain | 3/8 | 3/8 hard uss flat washer zdy usa domestic b18.22.1 | 3600 |
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| MMF | MI | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 hard uss flat washer zinc yellow usa domestic b18.22.1 | 3600 |
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| MMF | MI | USS Flat Washer | Steel | Plain | 3/8 | 3/8 hard uss flat washer zdy usa domestic b18.22.1 | 3600 |
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| MMF | MI | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | 3/8 hard uss flat washer zinc yellow usa domestic b18.22.1 | 3600 |
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