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USS Flat Washers , Nylon (Polyamide) (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 
BHAMALUSS Flat WasherNylon (Polyamide)Plain5/16 x 3/45/16x3/4 uss flat .062tk nylon b18.22.1154
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BHAMALUSS Flat WasherNylon (Polyamide)Plain1/4 x 1/21/4x1/2 uss flat .032tk nylon b18.22.178
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GLFOHUSS Flat WasherNylon (Polyamide)Plain3/83/8 uss flat nyl b18.22.1 () () ()41322
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BHAMALUSS Flat WasherNylon (Polyamide)Plain#6 x 5/16#6x5/16 uss flat .062tk nylon b18.22.11386
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OSSCORIUSS Flat WasherNylon (Polyamide)Plain1 1/21-1/2 flat uss special dimensions nylon b18.22.12,035
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