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5 inch length 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
SupplierLocTypeMaterialFinishSizeDescriptionQty 
AbabaCAUSS Flat WasherSteelZinc/Yellow9/16 x 59/16 uss f/w 5/pkg hrd stl yel znc (1-1/2 od) b18.22.14
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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/Yellow3/4 x 53/4 uss f/w 5/pkg hrd stl yel znc (2 od) b18.22.14
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AbabaCAUSS Flat WasherSteelZinc/Yellow9/16 x 59/16 uss f/w 5/pkg hrd stl yel znc (1-1/2 od) b18.22.13
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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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AbabaCAUSS Flat WasherSteelZinc/Yellow3/4 x 53/4 uss f/w 5/pkg hrd stl yel znc (2 od) b18.22.13
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