5325-00-738-0257 (500312)
NSN 5325-00-738-0257 (NIIN 00-738-0257) is a retaining ring in Federal Supply Class 5325, Fastening Devices — a resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action. Manufacturer part number 500312 (Alliant Techsystems IncOrdnance, CAGE 08638); also referenced as 7380257 (U S Army Tank Automotive Command).
NIIN assigned January 1963; DEMIL A (none required); export Schedule B 9606.10.0000.