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USS Flat Washers , Ni-Cu Alloy (Monel, K-Monel, etc.)

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 
MESAFASTCAUSS Flat WasherNi-Cu Alloy (Monel, K-Monel, etc.)Plain1/2USS flat monel38.0
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