5325-00-515-0153 (6751822)
NSN 5325-00-515-0153 (NIIN 00-515-0153) 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 6751822 (Allison Transmission Inc, CAGE 73342); also referenced as 6838403 (Rolls-Royce Solutions America Inc).
Key specs: 40 to 45 rockwell c material hardness; 54000 psi minimum yield strength; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $2.72 gov standard price; export Schedule B 9606.10.0000; ships at 0.03 lb / 0.0001 cu ft. Supersedes 5340-00-799-4909 (1962).