5325-00-922-8996 (450542)
NSN 5325-00-922-8996 (NIIN 00-922-8996) 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 450542 (Rtx Corporation, CAGE 77445); also referenced as RSN56S (Spirolox Inc); MIL-DTL-27426 (Military Specifications).
Key specs: 185000 psi minimum tensile strength; full characteristics table below. NIIN assigned January 1966; DEMIL A (none required); unit of issue EA (each), $0.96 gov standard price; export Schedule B 9606.10.0000; ships at 0.01 lb / 0 cu ft.