5305-00-018-0153 (180153)
NSN 5305-00-018-0153 (NIIN 00-018-0153) 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 180153 (Army Weapons Command Attn, CAGE 21450); also referenced as 4AX57 (Mack Trucks IncParts Opn); 60X3288 (Napco International LLC); MS35297-91 (Military Standards); PC180153 (Power Components (Deutschland) Gmbh).
Key specs: 23 to 30 rockwell c overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required). Supersedes 5305-00-685-1849 (1963); related NSN 5305-00-042-9477.