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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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SupplierLocTypeMaterialFinishSizeDescriptionQty 
JET FITTINGCAUSS Flat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8 x 1.750 x .1345/8x1.750x.134 flat washer stainless steel 18-8 uss b18.22.1219
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GLFOHUSS Flat WasherSteelPlain5/8 x 1 3/45/8x1-3/4 od uss flat -thru-hardened-plain b18.22.1 () ()1169
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AbabaCAUSS Flat WasherSteelZinc/Yellow5/8 x 55/8 uss f/w 5/pkg hrd stl yel znc (1-3/4 od) b18.22.18
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AbabaCAUSS Flat WasherSteelZinc/Yellow5/8 x 55/8 uss f/w 5/pkg hrd stl yel znc (1-3/4 od) b18.22.15
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QFCTXUSS Flat WasherSteelGalvanized5/8 x 6405/8 uss flat hdg 640/bx b18.22.12
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AbabaCAUSS Flat WasherSteelZinc/Yellow5/85/8 uss f/w hrd stl yel znc (1-3/4 od) b18.22.1511
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AbabaCAUSS Flat WasherSteelZinc/Yellow5/85/8 uss f/w hrd stl yel znc (1-3/4 od) b18.22.1175
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AbabaCAUSS Flat WasherSteelZinc/Yellow5/85/8 uss f/w extra thick hrd stl yel znc (1-3/4 od) b18.22.1176
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AbabaCAUSS Flat WasherSteelZinc/Yellow5/85/8 uss f/w extra thick hrd stl yel znc (1-3/4 od) b18.22.140
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AbabaCAUSS Flat WasherSteelGalvanized5/8-1 3/45/8 uss f/w stl hdg (1-3/4 od) b18.22.11555
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AbabaCAUSS Flat WasherSteelGalvanized5/8-1 3/45/8 uss f/w stl hdg (1-3/4 od) b18.22.1375
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AbabaCAUSS Flat WasherSteelPlain5/8-1 3/45/8 uss f/w stl pln (1-3/4 od) b18.22.1709
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AbabaCAUSS Flat WasherSteelZinc/Clear5/8-1 3/45/8 uss f/w stl znc (1-3/4 od) b18.22.14180
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AbabaCAUSS Flat WasherSteelZinc/Clear5/8-1 3/45/8 uss f/w stl znc (1-3/4 od) b18.22.1550
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AbabaCAUSS Flat WasherSteelZinc/Clear5/8-1 3/45/8 uss f/w stl znc (1-3/4 od) b18.22.11292
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AbabaCAUSS Flat WasherSteelZinc/Clear5/8-1 3/45/8 uss f/w stl znc (1-3/4 od) b18.22.1275
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B & K FASTPAUSS Flat WasherSteelGalvanized5/85/8 uss flat washers hd galv b18.22.145.52
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow5/85/8 uss thru-hard flat washers gr 8 z yellow b18.22.191.15
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B & K FASTPAUSS Flat WasherSteelPlain5/85/8 uss flat washers plain b18.22.1126.27
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B & K FASTPAUSS Flat WasherSteelZinc/Clear5/85/8 uss flat washers zinc b18.22.1151.29
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SIIINUSS Flat WasherSteelPlain5/85/8 uss flat washers low carbon plain b18.22.1216
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QFCTXUSS Flat WasherSteelPlain5/85/8 uss flat plain each 13 .688x1.75x.134 b18.22.135
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QFCTXUSS Flat WasherSteelPlain5/85/8 uss flat plain each 13 .688x1.75x.134 b18.22.1100
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QFCTXUSS Flat WasherSteelGalvanized5/85/8 uss flat hdg dom. b18.22.1584
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QFCTXUSS Flat WasherSteelGalvanized5/85/8 uss flat hdg dom. b18.22.1696
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QFCTXUSS Flat WasherSteelGalvanized5/85/8 uss flat hdg dom. b18.22.1100
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QFCTXUSS Flat WasherSteelZinc/Clear5/85/8 uss flat triv zinc b18.22.1240
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QFCTXUSS Flat WasherSteelZinc/Clear5/85/8 uss flat triv zinc b18.22.112678
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QFCTXUSS Flat WasherSteelZinc/Clear5/85/8 uss flat triv zinc b18.22.1920
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QFCTXUSS Flat WasherSteelGalvanized5/85/8 uss flat galvanized b18.22.16709
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QFCTXUSS Flat WasherSteelZinc/Clear5/85/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.1508
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QFCTXUSS Flat WasherSteelZinc/Clear5/85/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.13840
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QFCTXUSS Flat WasherSteelZinc/Clear5/85/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.1640
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QFCTXUSS Flat WasherSteelZinc/Clear5/85/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.1320
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QFCTXUSS Flat WasherSteelZinc/Clear5/85/8 uss flat zinc per each 13 .688x1.75x.134 b18.22.1900
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QFCTXUSS Flat WasherSteelZinc/Yellow5/85/8 yzp uss hard 372 b18.22.1298
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QFCTXUSS Flat WasherSteelZinc/Yellow5/85/8 yzp uss hard 372 b18.22.150
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Marine FastenersFLUSS Flat WasherSteelGalvanized5/85/8 uss flat hdg b18.22.125887
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WurthOntUSS Flat WasherSteelGalvanized5/8wsh flt uss a w st (hdg) 5/8 b18.22.1106
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GLFOHUSS Flat WasherSteelGalvanized5/85/8 uss flat stl hdg b18.22.1 () ()514
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GLFOHUSS Flat WasherGrade 8Zinc/Yellow5/85/8 uss flat gr 8 stl zy b18.22.1 () ()31946
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GLFOHUSS Flat WasherSteelPlain5/85/8 uss flat stl pln b18.22.1 () ()581
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GLFOHUSS Flat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/85/8 uss flat 18-8 s/s b18.22.1 () ()568
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GLFOHUSS Flat WasherSteelZinc/Clear5/85/8 uss flat stl zc b18.22.1 () ()3059
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GLFOHUSS Flat Washer316, 317, A4 StainlessPlain5/85/8 uss flat 316 s/s b18.22.1 () ()530
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GLFOHUSS Flat WasherGrade 8Plain5/85/8 uss flat gr 8 stl pln b18.22.1 () ()192
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GLFOHUSS Flat WasherSteelFluoropolymer-Based (Xylan, Fluorokote, Teflon)5/85/8 uss flat stl teflon b18.22.1 () ()110
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GLFOHUSS Flat WasherSteelZinc/Yellow5/85/8 uss flat thru-hard stl zy domestic b18.22.1 () ()456
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GLFOHUSS Flat WasherSteelZinc/Clear5/85/8 uss flat thru-hard stl zc domestic b18.22.1 () ()87
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THRDFASTFLUSS Flat WasherGrade 8Zinc/Yellow5/85/8 gr 8 USS f/w z&y domestic b18.22.118
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THRDFASTFLUSS Flat WasherGrade 8Plain5/8gr 8 USS f/w b18.22.1180
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THRDFASTOKUSS Flat WasherSteelGalvanized5/8USS f/w domestic hdg b18.22.13
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THRDFASTALUSS Flat WasherSteelCadmium5/8USS f/w b18.22.185
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THRDFASTALUSS Flat WasherSteelCadmium5/8USS f/w domestic b18.22.145
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THRDFASTMSUSS Flat WasherSteelZinc/Clear5/8USS f/w domestic b18.22.122
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General FMIUSS Flat WasherSteelZinc/Clear5/85/8 uss fw zn b18.22.11820
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QFCTXUSS Flat WasherSteelPlain5/85/8 pln uss hard washer b18.22.146
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QFCTXUSS Flat WasherSteelPlain5/85/8 uss flat washer plain b18.22.1100
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QFCTXUSS Flat WasherGrade 8Zinc/Yellow5/85/8 uss flat washer grade 8 zinc yellow b18.22.115
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QFCTXUSS Flat WasherSteelZinc/Black5/85/8 uss flat washer black zinc b18.22.1500
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QFCTXUSS Flat WasherSteelBlack Oxide5/85/8 uss flat washer black oxide b18.22.1550
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WSBKYUSS Flat WasherSteelPlain5/8q/washer flat uss a w all (mzyt) 5/8 b18.22.1574
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BHAMALUSS Flat WasherSteelGalvanized5/85/8 uss hardened mech galv b18.22.1596
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BHAMALUSS Flat WasherBrassPlain5/85/8 uss flat brass b18.22.1497
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KBSTNUSS Flat WasherSteelPlain5/85/8 uss flat/w b18.22.14,378
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KBSTNUSS Flat WasherSteelPlain5/85/8 !hardened! uss flat/w b18.22.11,304
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KBSTNUSS Flat WasherSteelZinc/Yellow5/85/8 !hardened! uss flat/w yellowznc b18.22.12,362
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MMFMIUSS Flat WasherSteelPlain5/85/8 hard uss flat washer zdy usa domestic b18.22.1785
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MMFMIUSS Flat WasherSteelZinc/Yellow5/85/8 hard uss flat washer zinc yellow usa domestic b18.22.1785
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MMFMIUSS Flat WasherSteelZinc/Yellow5/85/8 hard uss flat washer zinc yellow usa domestic b18.22.1785
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MMFMIUSS Flat WasherSteelPlain5/85/8 hard uss flat washer zdy usa domestic b18.22.1785
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OSSCORIUSS Flat WasherAluminumPlain5/85/8 flat uss alum b18.22.164
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Bostwick INUSS Flat WasherSteelZinc/Clear5/85/8 uss flat washer tight fit zinc b18.22.141
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Bostwick INUSS Flat WasherNylon (Polyamide)Plain5/85/8 uss flat washer nylon (.630 x 2.00 x .125) b18.22.1479
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JET FITTINGCAUSS Flat WasherSteelZinc/Clear5/85/8 uss f/w stl zinc 344008 b18.22.11853
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THRDFASTALUSS Flat WasherSteelZinc/Clear5/8USS f/w pkg. 50 pcs b18.22.13700
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THRDFASTOKUSS Flat WasherSteelGalvanized5/8USS f/w mech b18.22.186
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3Q, Inc.ILUSS Flat WasherSteelZinc/Yellow5/85/8 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.197500
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