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two piece washer set fits together like a ball and socket to compensate for uneven surfaces; male washer outside dia. is 2.250 in.; male washer inside dia. is 1.188; female washer outside dia. is 2.250 in.; female washer inside dia. is 1.219 in.; nom. thickness for both washers is 0.500 in.; screw size 1 1/8 in.; 18-8 stainless steel
FSC 5310 ⁓ Nuts and washers
Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.
Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).