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aluminum alloy, QQ-A-225/6, composition 2024, temper T351, finishper MIL-C-5541, 1.06 in. lg, 0.810 in. dia o/a 0.380 in. small id 0.65in. dia by 0.09 in. w under cut 0.02 in. corner radius, 0.580 in. min, 0.590 in. max large id 0.03 in. by 45 degree chamfer 0.75 in. dia BY0.050 in. deep counterbore large id, 0.800 in. min, 0.805 in. max lgfrom end to bottom of under cut, 5/8-24 UNEF-2B thd id
1EA
Schedule B number: 7616106000
nmfc 013540
Threaded fasteners of aluminum
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).