5306-01-063-3784 (5306PL1497619)
NSN 5306-01-063-3784 (NIIN 01-063-3784) is a close tolerance bolt in Federal Supply Class 5306, Bolts — an externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated. Manufacturer part number 5306PL1497619 (Jednolity Indeks Materialowy -, CAGE 9009H); also referenced as MS21297-04021 (National Aerospace Standards).
Key specs: 51 to 54 rockwell c overall hardness; full characteristics table below. NIIN assigned August 1978; DEMIL A (none required); unit of issue EA (each), $27.43 gov standard price; ships at 0.02 lb / 0.0002 cu ft.