5306-01-191-0392 (FF-B-584)
NSN 5306-01-191-0392 (NIIN 01-191-0392) is a square neck bolt in Federal Supply Class 5306, Bolts — a headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head. Manufacturer part number FF-B-584 (Federal Specifications Promulgated, CAGE 81348); also referenced as MS35751-138 (National Aerospace Standards).
NIIN assigned October 1984; DEMIL A (none required); unit of issue EA (each), $11.96 gov standard price; ships at 0.34 lb / 0.0034 cu ft.