5306-01-113-9731 (FF-S-85)
NSN 5306-01-113-9731 (NIIN 01-113-9731) is a machine bolt in Federal Supply Class 5306, Bolts — an externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. Manufacturer part number FF-S-85 (Federal Specifications Promulgated, CAGE 81348); also referenced as NASM51095-386 (National Aerospace Standards); MS51095-368 (Military Standards).
Key specs: finished head; 25 to 34 rockwell c overall hardness; full characteristics table below. NIIN assigned June 1981; DEMIL A (none required); unit of issue EA (each), $0.52 gov standard price; ships at 0.04 lb / 0.001 cu ft.