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 4140-01-561-4637
NSN 5985-01-398-0786
NSN 5855-00-962-5792
NSN 5855-00-079-2370
NSN 2925-00-432-3410
NSN 5990-00-982-4382
NSN 4140-00-239-7409
NSN 6135-01-280-2883
NSN 6105-00-932-4945
NSN 6220-01-623-1793
NSN 5925-01-564-3707
NSN 5965-01-472-3664