5306-00-576-6738 (MS20004-2)
NSN 5306-00-576-6738 (NIIN 00-576-6738) is an internal wrenching bolt in Federal Supply Class 5306, Bolts — an externally threaded fastener whose threaded portion is of one nominal diameter, no. Manufacturer part number MS20004-2 (Military Standards, CAGE 96906); also referenced as NAS144-10 (National Aerospace Standards).
Key specs: 34 rockwell c minimum and 40 rockwell c maximum overall hardness; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); ships at 0.01 lb / 0.0001 cu ft. Supersedes 5306-00-206-0809 (1977), 5306-00-601-5238 (1963); related NSN 5306-00-638-8552.