QQ-T-390A, FEDERAL SPECIFICATION: TIN ALLOY INGOTS AND CASTINGS AND LEAD ALLOY INGOTS AND CASTINGS (ANTIFRICTION METAL) FOR BEARING APPLICATIONS (17 A

QQ-T-390A, FEDERAL SPECIFICATION: TIN ALLOY INGOTS AND CASTINGS AND LEAD ALLOY INGOTS AND CASTINGS (ANTIFRICTION METAL) FOR BEARING APPLICATIONS (17 APR 1972) [S/S BY ASTM-B23]., This specification covers antifriction metal for use in bearings.