5305-01-414-0264 (FF-S-86)
NSN 5305-01-414-0264 (NIIN 01-414-0264) is a socket head cap screw in Federal Supply Class 5305, Screws — an externally threaded fastener whose threaded portion is of one nominal diameter. Manufacturer part number FF-S-86 (Federal Specifications Promulgated, CAGE 81348); also referenced as NAS1352-06-15P (National Aerospace Standards).
Key specs: 39 to 45 rockwell c overall hardness; full characteristics table below. NIIN assigned May 1995; DEMIL A (none required); unit of issue EA (each), $0.96 gov standard price.