5306-00-145-7053 (5306PL0893139)
NSN 5306-00-145-7053 (NIIN 00-145-7053) 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 5306PL0893139 (Jednolity Indeks Materialowy -, CAGE 9009H); also referenced as AN3C3 (National Aerospace Standards).
Key specs: finished head; 26 rockwell c minimum and 32 rockwell c maximum overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue HD (hundred), $76.66 gov standard price; ships at 0.4 lb / 0.0052 cu ft.