QQ-B-691B, FEDERAL SPECIFICATION: BRONZE CASTINGS (02 MAY 1944) [S/S BY QQ-L-225]

QQ-B-691B, FEDERAL SPECIFICATION: BRONZE CASTINGS (02 MAY 1944) [S/S BY QQ-L-225]., This specification covers machined solid and cored cast bronze bars for bearings and other miscellaneous bronze casting in the several compositions shown in Table I.