5305-00-014-5193 (145193)
NSN 5305-00-014-5193 (NIIN 00-014-5193) is a tapping screw in Federal Supply Class 5305, Screws — a hardened externally threaded fastener whose thread extends to the bearing surface of the head. Manufacturer part number 145193 (General Motors LLC, CAGE 7X677); also referenced as FFS107TYPEBSTYLE9S (Federal Specifications Promulgated).
Key specs: case-hardened; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required). Related NSN 5305-00-836-8476.