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USS Flat Washers (ANSI 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.

267 USS Flat Washer (ansi b18.22.1), showing 200, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
AbabaCAUSS Flat WasherSteelZinc/Yellow11 uss f/w hrd stl yel znc (2-1/2 od) b18.22.1163
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AbabaCAUSS Flat WasherSteelZinc/Yellow11 uss f/w extra thick hrd stl yellow zinc (2-1/2 od) b18.22.191
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AbabaCAUSS Flat WasherSteelGalvanized1-2 1/21 uss f/w stl hdg (2-1/2 od) b18.22.1290
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AbabaCAUSS Flat WasherSteelPlain1-2 1/21 uss f/w stl pln (2-1/2 od) b18.22.1123
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AbabaCAUSS Flat WasherSteelZinc/Clear1-2 1/21 uss f/w stl znc (2-1/2 od) b18.22.1649
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AbabaCAUSS Flat WasherSteelZinc/Clear10 9/16#10 uss f/w stl znc (9/16 od) b18.22.120569
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AbabaCAUSS Flat WasherSteelZinc/Yellow1 1/41 1/4 uss f/w hrd stl yel znc (3 od) b18.22.13
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AbabaCAUSS Flat WasherSteelGalvanized1 1/41 1/4 uss f/w stl hdg (3 od) b18.22.124
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AbabaCAUSS Flat WasherSteelPlain1 1/41 1/4 uss f/w stl pln (3 od) b18.22.165
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AbabaCAUSS Flat WasherSteelZinc/Clear1 1/41 1/4 uss f/w stl znc (3 od) b18.22.1131
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AbabaCAUSS Flat WasherSteelPlain1 1/81 1/8 uss f/w hrd stl pln (2-3/4 od) b18.22.11
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AbabaCAUSS Flat WasherSteelZinc/Yellow1 1/81 1/8 uss f/w hrd stl yel znc (2-3/4 od) b18.22.1130
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AbabaCAUSS Flat WasherSteelGalvanized1 1/81 1/8 uss f/w stl hdg (2-3/4 od) b18.22.121
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AbabaCAUSS Flat WasherSteelZinc/Clear1 1/81 1/8 uss f/w stl znc (2-3/4 od) b18.22.127
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AbabaCAUSS Flat WasherSteelZinc/Clear2-4 1/22 uss f/w stl znc (4-1/2 od) b18.22.123
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AbabaCAUSS Flat WasherSteelPlain2 1/2-52-1/2 uss f/w stl pln (5 od) b18.22.19
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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/Yellow1 1/21 1/2 uss f/w hrd stl yel znc (3-1/2 od) b18.22.14
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AbabaCAUSS Flat WasherSteelPlain1 1/21 1/2 uss f/w stl pln (3-1/2 od) b18.22.194
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B & K FASTPAUSS Flat WasherSteelGalvanized1/41/4 uss flat washers hd galv b18.22.1734.29
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B & K FASTPAUSS Flat WasherSteelGalvanized5/165/16 uss flat washers hd galv b18.22.1585.02
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B & K FASTPAUSS Flat WasherSteelGalvanized3/83/8 uss flat washers hd galv b18.22.1142.15
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B & K FASTPAUSS Flat WasherSteelGalvanized1/21/2 uss flat washers hd galv b18.22.1101.1
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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 WasherSteelGalvanized3/43/4 uss flat washers hd galv b18.22.150.02
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B & K FASTPAUSS Flat WasherSteelGalvanized7/87/8 uss flat washers hd galv b18.22.11589.08
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B & K FASTPAUSS Flat WasherSteelGalvanized11 uss flat washers hd galv b18.22.1279.827872340426
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B & K FASTPAUSS Flat WasherSteelGalvanized1 1/41 1/4 uss flat washers galv b18.22.1131
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B & K FASTPAUSS Flat WasherSteelGalvanized1 1/21 1/2 uss flat washers galv b18.22.1248
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B & K FASTPAUSS Flat WasherSteelGalvanized1 3/41 3/4 uss flat washers galv b18.22.14
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow1/41/4 uss thru-hard flat washers gr 8 z yellow b18.22.1184.4208591
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow5/165/16 uss thru-hard flat washers gr 8 z yellow b18.22.1153.939
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Clear3/83/8 uss thru-hard flat washers gr 8 zinc b18.22.11.45
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow3/83/8 uss thru-hard flat washers gr.8 zy b18.22.176.8
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow7/167/16 uss thru-hard flat washers gr 8 z yellow b18.22.114.83
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B & K FASTPAUSS Flat WasherSteelPlain1/21/2 uss flat washers heavy mc12 b18.22.1926
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow1/21/2 uss thru-hard flat washers gr 8 z yellow b18.22.145.4
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B & K FASTPAUSS Flat WasherGrade 8Zinc/Yellow9/169/16 uss thru-hard flat washers gr 8 z yellow b18.22.1246.39
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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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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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JET FITTINGCAUSS Flat WasherSteelPlain3/4 x 2.000 x .156washer flat 3/4x2.000x.156 steel plain uss b18.22.1194
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JET FITTINGCAUSS Flat WasherBrassPlain1 x 2.500 x .1711x2.500x.171 flat washer brass uss b18.22.1396
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JET FITTINGCAUSS Flat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16 x .875 x .083washer flat 5/16x.875x.083 stainless steel 18-8 uss b18.22.13785
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JET FITTINGCAUSS Flat WasherSteelZinc/Clear5/16 x .875 x .0835/16x.875x.083 flat washer steel zinc plated uss b18.22.125396
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JET FITTINGCAUSS Flat WasherSteelZinc/Clear3/8 x 1.00 x .1003/8x1.00x.100 flat washer steel zinc plated uss b18.22.15420
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JET FITTINGCAUSS Flat WasherSteelGalvanized1/2 x 1.375 x .1091/2x1.375x.109 flat washer steel hot dip galvanized uss b18.22.1660
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JET FITTINGCAUSS Flat WasherSteelZinc/Clear#10 x .562 x .049#10x.562x.049 flat washer steel zinc uss b18.22.14100
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JET FITTINGCAUSS Flat WasherSteelBlack Oxide1/4 x .750 x .0621/4x.750x.062 flat washer steel black oxide uss b18.22.113000
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JET FITTINGCAUSS Flat Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x .750 x .0621/4x.750x.062 flat washer stainless steel 18-8 uss b18.22.1935
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JET FITTINGCAUSS Flat WasherSteelZinc/Clear1/4 x .750 x .0621/4x.750x.062 flat washer steel zinc plated uss b18.22.13704
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JET FITTINGCAUSS Flat WasherSteelBlack Oxide1/2 x 1 3/8 x .1091/2x1-3/8x.109 uss flat washers steel black oxide b18.22.1388
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JET FITTINGCAUSS Flat WasherSteelPlain1 1/21 1/2 washers flat washers uss steel flat washer plain (inch) b18.22.125
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JET FITTINGCAUSS Flat WasherSteelGalvanized5/165/16 washers flat washers uss steel flat washer hdg (inch) b18.22.1415
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JET FITTINGCAUSS Flat WasherSteelGalvanized3/83/8 washers flat washers uss steel flat washer hdg (inch) b18.22.1222
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JET FITTINGCAUSS Flat WasherSteelGalvanized1 x 2 1/2 x 11/641x2-1/2x11/64 washer flat steel hot dip galvanized uss 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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JET FITTINGCAUSS Flat WasherSteelZinc/Clear5/165/16 washers flat washers (thru haroundened) uss steel flat washer (usa) thru-hardened zinc cr+3 (inch) b18.22.15
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