5365-00-928-9630 (RST293)
NSN 5365-00-928-9630 (NIIN 00-928-9630) 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 RST293 (Spirolox Inc, CAGE 80756); also referenced as WST-293 (Smalley Steel Ring Co.); 27237 (Vickers Inc).
Key specs: 211000 psi minimum tensile strength; full characteristics table below. NIIN assigned August 1966; DEMIL A (none required); unit of issue EA (each), $1.52 gov standard price; export Schedule B 9606.10.0000; ships at 0.05 lb / 0.0014 cu ft.