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2 1/2 inch length 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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Buy USS Flat Washers from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
JacksonMSUSS Flat WasherGrade 8Zinc/Yellow11 USS gr 8 flat 1 1/16 idx2 1/2 od3530.8
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JacksonMSUSS Flat WasherSteelZinc/Clear11 USS flat 1 1/16 idx2 1/2 od 8 gauge +/-5.3/lb6299.2
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JacksonMSUSS Flat WasherSteelPlain11 USS flat 1 1/16 idx2 1/2 od 5.3/lb1406
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YANKEENHUSS Flat WasherSteelZinc/Clear1 x 2 1/21 x 2-1/2 uss flat washer steel zinc plated228
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KomarMOUSS Flat WasherGrade 8Zinc/Clear1 uss flat washer 1 1/16 x 2 1/2 x 11/64 grade 8 zinc trivalent (
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KomarOHUSS Flat WasherSteelZinc/Clear1 uss flt washer 1 1/16x2 1/2x11/64 zinc
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KomarOHUSS Flat WasherSteelBlack Oxide1 uss flat washer 1 1/16 x 2 1/2 x 11/64 black oxide
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XL ScrewGAUSS Flat WasherGrade 5Zinc/Yellow1 (1 1/16 x 2 1/2 x .136/.192)uss flat hard rc 38-45 zyd for a325/a490 and 8 9 bolts250
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XL ScrewGAUSS Flat WasherGrade 5Plain1 (1 1/16 x 2 1/2 x .136/.192)uss flat hard rc 38-45 for a325/a490 and 8 9 bolts250
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