5306-01-059-0211 (MS21297-09033)
NSN 5306-01-059-0211 (NIIN 01-059-0211) 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 MS21297-09033 (Sps Technologies, LLC, CAGE 06725); also referenced as VFK101G9-033 (Valley-Todeco, Inc.).
Key specs: 46 to 50 rockwell c overall hardness; full characteristics table below. NIIN assigned April 1978; DEMIL A (none required); unit of issue EA (each), $30.69 gov standard price; ships at 0.29 lb / 0.0034 cu ft.