5325-00-945-7769 (6770919)
NSN 5325-00-945-7769 (NIIN 00-945-7769) 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 6770919 (The W.W. Williams Company, LLC, CAGE 6H244).
Key specs: 40 to 53 rockwell c material hardness; full characteristics table below. NIIN assigned April 1966; DEMIL A (none required); unit of issue EA (each), $1.28 gov standard price; export Schedule B 9606.10.0000.