4310-01-010-1278 (17090-A)
NSN 4310-01-010-1278 (NIIN 01-010-1278) is a piston ring in Federal Supply Class 4310, Compressors And Vacuum Pumps — a circular, single or multipiece item, metallic or nonmetallic in composition. Manufacturer part number 17090-A (O. C. Keckley Company, CAGE 32869); also referenced as 7325, 7325 A (O. C. Keckley Company).
Key specs: wearing edges beveled; full characteristics table below. NIIN assigned September 1975; DEMIL A (none required); unit of issue EA (each), $8.46 gov standard price; export Schedule B 8414.90.2095.