5305-00-057-9610 (FFS107)
NSN 5305-00-057-9610 (NIIN 00-057-9610) 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 FFS107 (Federal Specifications Promulgated, CAGE 81348); also referenced as MS24621-27 (Military Standards).
Key specs: case-hardened; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue HD (hundred), $1.86 gov standard price; ships at 0.22 lb / 0.0033 cu ft. Supersedes 5305-00-237-7937 (1982), 5305-00-998-3246 (1983), 5305-00-619-5461 (2023) and 3 more; related NSN 5305-00-281-5881, 5305-00-286-0461, 5305-00-497-4085 and 1 more.