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5/8 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.
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| Buy USS Flat Washers from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| GLF | OH | USS Flat Washer | Steel | Galvanized | 5/8 | 5/8 uss flat stl hdg b18.22.1 () () () | 350 |
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| GLF | OH | USS Flat Washer | Grade 8 | Zinc/Yellow | 5/8 | 5/8 uss flat gr 8 stl zy b18.22.1 () () () | 6431 |
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| GLF | OH | USS Flat Washer | Steel | Plain | 5/8 | 5/8 uss flat stl pln b18.22.1 () () () | 604 |
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| GLF | OH | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8 | 5/8 uss flat 18-8 s/s b18.22.1 () () () | 407 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat stl zc b18.22.1 () () () | 2060 |
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| GLF | OH | USS Flat Washer | 316, 317, A4 Stainless | Plain | 5/8 | 5/8 uss flat 316 s/s b18.22.1 () () () | 535 |
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| GLF | OH | USS Flat Washer | Grade 8 | Plain | 5/8 | 5/8 uss flat gr 8 stl pln b18.22.1 () () () | 192 |
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| GLF | OH | USS Flat Washer | Steel | Fluoropolymer-Based (Xylan, Fluorokote, Teflon) | 5/8 | 5/8 uss flat stl teflon b18.22.1 () () () | 110 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 uss flat thru-hard stl zy domestic b18.22.1 () () () | 456 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat thru-hard stl zc domestic b18.22.1 () () () | 87 |
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| GLF | OH | USS Flat Washer | Steel | Plain | 5/8 x 1 3/4 | 5/8x1-3/4 od uss flat -thru-hardened-plain b18.22.1 () () () | 1169 |
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| BHAM | AL | USS Flat Washer | Steel | Galvanized | 5/8 | 5/8 uss hardened mech galv b18.22.1 | 596 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 uss f/w hrd stl yel znc (1-3/4 od) b18.22.1 | 671 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 5/8 x 5 | 5/8 uss f/w 5/pkg hrd stl yel znc (1-3/4 od) b18.22.1 | 8 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 uss f/w extra thick hrd stl yel znc (1-3/4 od) b18.22.1 | 88 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 5/8-1 3/4 | 5/8 uss f/w stl hdg (1-3/4 od) b18.22.1 | 2198 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 5/8-1 3/4 | 5/8 uss f/w stl pln (1-3/4 od) b18.22.1 | 248 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 5/8-1 3/4 | 5/8 uss f/w stl znc (1-3/4 od) b18.22.1 | 4731 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 5/8-1 3/4 | 5/8 uss f/w stl znc (1-3/4 od) b18.22.1 | 1534 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 uss f/w hrd stl yel znc (1-3/4 od) b18.22.1 | 175 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 5/8 x 5 | 5/8 uss f/w 5/pkg hrd stl yel znc (1-3/4 od) b18.22.1 | 5 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 uss f/w extra thick hrd stl yel znc (1-3/4 od) b18.22.1 | 40 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 5/8-1 3/4 | 5/8 uss f/w stl hdg (1-3/4 od) b18.22.1 | 375 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 5/8-1 3/4 | 5/8 uss f/w stl znc (1-3/4 od) b18.22.1 | 550 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 5/8-1 3/4 | 5/8 uss f/w stl znc (1-3/4 od) b18.22.1 | 275 |
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| SII | IN | USS Flat Washer | Steel | Plain | 5/8 | 5/8 uss flat washers low carbon plain b18.22.1 | 216 |
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| 3Q, Inc. | IL | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.1 | 97500 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss f/w stl zinc 344008 b18.22.1 | 1853 |
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| General F | MI | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss fw zn b18.22.1 | 1820 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 5/8 | 5/8 uss flat plain each 13 .688x1.75x.134 b18.22.1 | 35 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 5/8 | 5/8 uss flat plain each 13 .688x1.75x.134 b18.22.1 | 100 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 5/8 | 5/8 uss flat hdg dom. b18.22.1 | 584 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 5/8 | 5/8 uss flat hdg dom. b18.22.1 | 696 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 5/8 | 5/8 uss flat hdg dom. b18.22.1 | 100 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat triv zinc b18.22.1 | 240 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat triv zinc b18.22.1 | 12678 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat triv zinc b18.22.1 | 920 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 5/8 | 5/8 uss flat galvanized b18.22.1 | 6709 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 5/8 x 640 | 5/8 uss flat hdg 640/bx b18.22.1 | 2 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.1 | 508 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.1 | 3840 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.1 | 640 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.1 | 320 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.1 | 900 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 yzp uss hard 372 b18.22.1 | 298 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 yzp uss hard 372 b18.22.1 | 50 |
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| B & K FAST | PA | USS Flat Washer | Steel | Galvanized | 5/8 | 5/8 uss flat washers hd galv b18.22.1 | 45.52 |
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| B & K FAST | PA | USS Flat Washer | Grade 8 | Zinc/Yellow | 5/8 | 5/8 uss thru-hard flat washers gr 8 z yellow b18.22.1 | 91.15 |
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| B & K FAST | PA | USS Flat Washer | Steel | Plain | 5/8 | 5/8 uss flat washers plain b18.22.1 | 126.27 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat washers zinc b18.22.1 | 151.29 |
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| OSSCO | RI | USS Flat Washer | Aluminum | Plain | 5/8 | 5/8 flat uss alum b18.22.1 | 64 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 5/8 | 5/8 pln uss hard washer b18.22.1 | 46 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 5/8 | 5/8 uss flat washer plain b18.22.1 | 100 |
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| QFC | TX | USS Flat Washer | Grade 8 | Zinc/Yellow | 5/8 | 5/8 uss flat washer grade 8 zinc yellow b18.22.1 | 15 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Black | 5/8 | 5/8 uss flat washer black zinc b18.22.1 | 500 |
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| QFC | TX | USS Flat Washer | Steel | Black Oxide | 5/8 | 5/8 uss flat washer black oxide b18.22.1 | 550 |
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| Bostwick | IN | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 uss flat washer tight fit zinc b18.22.1 | 41 |
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| Bostwick | IN | USS Flat Washer | Nylon (Polyamide) | Plain | 5/8 | 5/8 uss flat washer nylon (.630 x 2.00 x .125) b18.22.1 | 479 |
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| JET FITTING | CA | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8 x 1.750 x .134 | 5/8x1.750x.134 flat washer stainless steel 18-8 uss b18.22.1 | 219 |
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| Wurth | Ont | USS Flat Washer | Steel | Galvanized | 5/8 | wsh flt uss a w st (hdg) 5/8 b18.22.1 | 106 |
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| THRDFAST | FL | USS Flat Washer | Grade 8 | Zinc/Yellow | 5/8 | 5/8 gr 8 USS f/w z&y domestic b18.22.1 | 18 |
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| THRDFAST | FL | USS Flat Washer | Grade 8 | Plain | 5/8 | gr 8 USS f/w b18.22.1 | 180 |
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| THRDFAST | OK | USS Flat Washer | Steel | Galvanized | 5/8 | USS f/w domestic hdg b18.22.1 | 3 |
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| THRDFAST | AL | USS Flat Washer | Steel | Cadmium | 5/8 | USS f/w b18.22.1 | 85 |
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| THRDFAST | AL | USS Flat Washer | Steel | Cadmium | 5/8 | USS f/w domestic b18.22.1 | 45 |
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| THRDFAST | MS | USS Flat Washer | Steel | Zinc/Clear | 5/8 | USS f/w domestic b18.22.1 | 22 |
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| KBS | TN | USS Flat Washer | Steel | Plain | 5/8 | 5/8 uss flat/w b18.22.1 | 4,378 |
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| KBS | TN | USS Flat Washer | Steel | Plain | 5/8 | 5/8 !hardened! uss flat/w b18.22.1 | 1,304 |
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| KBS | TN | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 !hardened! uss flat/w yellowznc b18.22.1 | 2,362 |
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| THRDFAST | AL | USS Flat Washer | Steel | Zinc/Clear | 5/8 | USS f/w pkg. 50 pcs b18.22.1 | 3700 |
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| THRDFAST | OK | USS Flat Washer | Steel | Galvanized | 5/8 | USS f/w mech b18.22.1 | 86 |
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| WSB | KY | USS Flat Washer | Steel | Plain | 5/8 | q/washer flat uss a w all (mzyt) 5/8 b18.22.1 | 574 |
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| MMF | MI | USS Flat Washer | Steel | Plain | 5/8 | 5/8 hard uss flat washer zdy usa domestic b18.22.1 | 785 |
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| MMF | MI | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 hard uss flat washer zinc yellow usa domestic b18.22.1 | 785 |
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| MMF | MI | USS Flat Washer | Steel | Zinc/Yellow | 5/8 | 5/8 hard uss flat washer zinc yellow usa domestic b18.22.1 | 785 |
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| MMF | MI | USS Flat Washer | Steel | Plain | 5/8 | 5/8 hard uss flat washer zdy usa domestic b18.22.1 | 785 |
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