5306-01-023-2425 (LK21094-5006)
NSN 5306-01-023-2425 (NIIN 01-023-2425) 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 LK21094-5006 (Torkon Fastener Corp, CAGE 26304); also referenced as MS21094-5006 (National Aerospace Standards).
Key specs: finished head; 26 to 32 rockwell c overall hardness; full characteristics table below. NIIN assigned June 1976; DEMIL A (none required); ESD/EMI-sensitive; unit of issue EA (each), $7.51 gov standard price; ships at 0.01 lb / 0.001 cu ft.