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 nesoi, of compressors other than refrigerating and air conditioning compressors
NSN 5835-01-025-8761
NSN 5985-01-357-8907
NSN 4140-01-556-4113
NSN 5855-01-417-1315
NSN 5999-01-245-3348
NSN 5990-01-355-3239
NSN 5990-01-113-0303
NSN 6135-00-702-2772
NSN 5935-01-483-1384
NSN 5910-00-342-4338
NSN 6650-01-555-0896
NSN 5920-00-904-1549