5365-00-943-5375 (UR500CD)
NSN 5365-00-943-5375 (NIIN 00-943-5375) is a retaining ring in Federal Supply Class 5365, Bushings, Rings, Shims, And Spacers — 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 UR500CD (Spirolox Inc, CAGE 80756); also referenced as 5325PL0723891 (Jednolity Indeks Materialowy -).
Key specs: 211000 psi minimum tensile and 280000 psi minimum tensile strength; full characteristics table below. NIIN assigned February 1966; DEMIL A (none required); unit of issue EA (each), $5.93 gov standard price; export Schedule B 9606.10.0000; ships at 0.04 lb / 0.0003 cu ft.