5325-00-567-2553 (SCB105973-2)
NSN 5325-00-567-2553 (NIIN 00-567-2553) 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 SCB105973-2 (Us Army Communications & Electronics, CAGE 80063); also referenced as SCB105973 (Us Army Communications & Electronics).
Key specs: 42.5 rockwell c nominal material hardness; 20000 psi minimum yield strength; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $2.48 gov standard price; export Schedule B 9606.10.0000.