5305-00-042-8685 (428685)
NSN 5305-00-042-8685 (NIIN 00-042-8685) is a hexagon head cap screw in Federal Supply Class 5305, Screws — an externally threaded fastener designed for insertion into holes in assembled parts. Manufacturer part number 428685 (General Motors LLC, CAGE 7X677); also referenced as FFS85TYPE2STYLE10PGRADE2 (Federal Specifications Promulgated).
Key specs: 100 rockwell b maximum overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required). Supersedes 5305-00-638-5901 (1967); related NSN 5305-00-724-7221.