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1 3/8 USS Flat Washers

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 
JacksonMSUSS Flat WasherSteelZinc/Clear1 3/81-3/8 USS flat 1 1/2 idx3 1/4 od 7 gauge 3/lb757
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JacksonMSUSS Flat WasherSteelPlain1 3/81 3/8 USS flat 1 1/2 idx3 1/4 od 3/lb203
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YANKEENHUSS Flat WasherSteelPlain1 3/8 x 3 1/41-3/8 x 3-1/4 uss flat washer plain steel58
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ACFCAUSS Flat WasherSteelZinc/Clear1.500 x 3.250 x .1801.500x3.250x.180 uss steel flatwasher z/p rohs130
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XL ScrewGAUSS Flat WasherGrade 5Plain1 3/8 (1 1/2 x 3 1/4 x .153/.213)uss flat hard rc 38-45 for a325/a490 and 8 9 bolts150
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XL ScrewGAUSS Flat WasherGrade 5Zinc/Yellow1 3/8 (1 1/2 x 3 1/4 x .153/.213)uss flat hard rc 38-45 zyd for a325/a490 and 8 9 bolts150
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BoltCraftNEUSS Flat WasherSteelPlain1 3/8 x 1451-3/8 uss flat washer plain 145/ctninquire
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JacksonMSUSS Flat WasherSteelGalvanized1 3/8USS flat hot dip 1 1/2 idx3 1/4 od 3/lb196
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LippinCAUSS Flat WasherSteelZinc/Clear1 3/81 3/8 flat washer uss zp 5# (15)1
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AbabaCAUSS Flat WasherSteelPlain1 3/81 3/8 uss f/w stl pln (3-1/4 od) b18.22.195
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AbabaCAUSS Flat WasherSteelZinc/Clear1 3/81 3/8 uss f/w stl znc (3-1/4 od) b18.22.1124
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AbabaCAUSS Flat WasherSteelZinc/Clear1 3/81 3/8 uss f/w stl znc (3-1/4 od) b18.22.125
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JET FITTINGCAUSS Flat WasherSteelGalvanized1 3/81 3/8 washers flat washers uss steel flat washer hdg (inch) b18.22.19
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ACCURATEILUSS Flat WasherSteelPlain1 3/8uss flat s421
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SunPackFLUSS Flat WasherSteelZinc/Clear1 3/81-3/8 uss flat zinc12
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SunPackFLUSS Flat WasherSteelPlain1 3/81-3/8 uss flat plain21
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SunPackFLUSS Flat WasherGrade 8Zinc/Yellow1 3/81-3/8 gr8 uss flat yellow zinc112
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SunPackFLUSS Flat WasherSteelZinc/Clear1 3/8USS flat12
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HewesNYUSS Flat WasherSteelZinc/Clear1 3/8USS f/w pl150 pc/50#168
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Cal FastenrsCAUSS Flat WasherSteelZinc/Clear1 3/8USS f/w14
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Wurth AdaMNUSS Flat WasherSteelZinc/Clear1 3/8washer flat uss a w steel (zt) 1 3/8100
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GLFOHUSS Flat WasherSteelZinc/Clear1 3/81-3/8 uss flat stl zc b18.22.1 () () ()268
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AmericanNYUSS Flat WasherSteelPlain1 3/8USS flat134
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THRDFASTOKUSS Flat WasherSteelPlain1 3/8USS f/w b18.22.1105
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OBRIENOHUSS Flat WasherGrade 8Plain1 3/8USS f/w gr88
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THRDFASTFLUSS Flat WasherGrade 8Plain1 3/8gr 8 USS f/w b18.22.12
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SunPackFLUSS Flat WasherGrade 8Zinc/Yellow1 3/81-3/8 gr8 uss flat yellow zinc107
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UNEEDANJUSS Flat WasherSteelPlain1 3/8USS flat170
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AbabaCAUSS Flat WasherSteelGalvanized1 3/81 3/8 uss flat washer steel hot dip galvanized (3-1/4 od) b18.22.19
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LippinCAUSS Flat WasherSteelZinc/Clear1 3/81 3/8 flat washer uss zinc6450
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NutsBoltsNEUSS Flat WasherSteelZinc/Yellow1 3/81 3/8 uss flat washer zy
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NutsBoltsNEUSS Flat WasherSteelZinc/Clear1 3/81 3/8 uss flat washer zp144
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NutsBoltsNEUSS Flat WasherSteelPlain1 3/81 3/8 uss flat washer plain54
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BHAMTXUSS Flat WasherSteelPlain1 3/8USS flat138
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BHAMFLUSS Flat WasherSteelPlain1 3/8USS flat113
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Future FastenerTXUSS Flat WasherSteelZinc/Clear1 3/81 3/8 uss flat washer plt134
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JacksonMSUSS Flat WasherGrade 8Zinc/Yellow1 3/8USS gr 8 flat491
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LippinCAUSS Flat WasherSteelPlain1 3/8flat washer uss plain49
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DeltaTXUSS Flat WasherSteelZinc/Clear1 3/8flat washer uss zinc 1 3/8 (3 1/4 OD)118
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DeltaTXUSS Flat WasherSteelPlain1 3/8flat washer uss plain 1 3/8 (3 1/4 OD)189
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DeltaTXUSS Flat WasherSteelGalvanized1 3/8flat washer uss hdg 1 3/8 (3 1/4 OD)226
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All SizeTXUSS Flat WasherSteelGalvanized1 3/81-3/8 uss washer galv b18.22.1122
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All SizeTXUSS Flat WasherSteelPlain1 3/81 3/8 uss flat washer plain b18.22.1138
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THRDFASTALUSS Flat WasherSteelPlain1 3/8USS f/w b18.22.135
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SRFALUSS Flat WasherSteelZinc/Clear1 3/8USS flat850
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WDMBIAUSS Flat WasherSteelPlain1 3/8flat uss a w st (pl) 1 3/8129
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WSBKYUSS Flat WasherSteelZinc/Yellowq/washer flat uss a w zy 1 3/8 b18.22.1720
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ASFCORPMIUSS Flat WasherSteelGalvanized1 3/81 3/8 uss flt wshr hdg pkg25
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ASFCORPMIUSS Flat WasherSteelPlain1 3/81 3/8 uss flt wshr thru-hardened stl rc 38-45 pkg5
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FastWareSaskUSS Flat WasherSteelPlain1 3/8USS flat34
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ASMCILUSS Flat WasherSteelZinc/Clear1 3/8flat USS pattern low carb zp5
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Alma BoltMIUSS Flat WasherSteelPlain1 3/8USS flat238
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KBSTNUSS Flat WasherSteelZinc/Yellow1 3/81-3/8 !hardened! uss flat/w yellowznc b18.22.1360
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Kanebridge ILUSS Flat WasherSteelZinc/Clear1 3/81 3/8 uss flat washer zinc625,000
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LibertyILUSS Flat WasherSteelZinc/Yellow1 3/8USS flat .0002 (1-1/2x3-1/4x.153/.213) (1-1/2x3-1/4x.153/.213)141
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HBBOLTCAUSS Flat WasherSteelZinc/Clear1 3/8USS flat []9
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General FMIUSS Flat WasherSteelZinc/Clear1 3/81-3/8 uss mil carb zinc .0002 tri-clear Hardened15
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XL ScrewGAUSS Flat WasherSteelPlain1 3/8uss flat s150
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XL ScrewGAUSS Flat WasherSteelZinc/Clear1 3/8uss flat s zp150
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MidStatesMIUSS Flat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 3/81-3/8 uss flat washer 18-88
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HayesCAUSS Flat WasherSteelPlain1 3/81-3/8 uss flat washer pln55
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SunPackFLUSS Flat WasherSteelPlain1 3/8USS flat21
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Valley NuWAUSS Flat WasherSteelZinc/Black1 3/8(3 1/4 od) USS cut zb27.5
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ASFCORPMIUSS Flat WasherSteelZinc/Clear1 3/81 3/8 uss flt wshr tri zn fe/zn 5an pkg170
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HodellOHUSS Flat WasherSteelPlain1 3/81 3/8 uss fl wash pln (pcs) 25 pcs50
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LightningLAUSS Flat WasherGrade 8Zinc/Yellow1 3/8USS flat110
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HodellOHUSS Flat WasherSteelPlain1 3/81 3/8 uss fl wash pln50
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Valley NuWAUSS Flat WasherSteelPlain1 3/8(3 1/4 od) USS pl35.5
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HodellOHUSS Flat WasherSteelPlain1 3/81 3/8 uss fl wash plain (lbs)50
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Valley NuWAUSS Flat WasherSteelGalvanized1 3/8(3 1/4od) USS hdg131.5
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LightningLAUSS Flat WasherSteelPlain1 3/8astm f844 USS flat452
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HodellOHUSS Flat WasherSteelPlain1 3/81 3/8 uss fl wash plain (lbs)50
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HodellOHUSS Flat WasherSteelPlain1 3/81 3/8 uss fl wash plain (lbs)50
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Fastener OHUSS Flat WasherGrade 8Zinc/Yellow1 3/8flat 1-3/8 uss grade 8 zinc yellow 60
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LightningLAUSS Flat WasherSteelGalvanized1 3/8astm f844 USS flat hot dipped130
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LightningLAUSS Flat WasherSteelZinc/Clear1 3/8astm f844 USS flat96
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THRDFASTMSUSS Flat WasherSteelGalvanized1 3/8USS f/w hdg b18.22.15
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HodellOHUSS Flat WasherSteelPlain1 3/81 3/8 uss fl wash pln50
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