A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6150-00-962-8622
NSN 5990-01-506-7695
NSN 5915-01-329-7862
NSN 6110-01-467-4693
NSN 5930-01-462-2516
NSN 6645-00-941-9343
NSN 5930-01-276-4545
NSN 6105-01-457-5926
NSN 6650-01-557-7444
NSN 5925-01-519-9251
NSN 2925-00-989-0523
NSN 6650-01-192-2340