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 6645-01-400-1137
NSN 6240-01-184-6831
NSN 5910-00-935-1136
NSN 5925-00-410-1722
NSN 5920-01-218-6191
NSN 5998-01-563-8985
NSN 6220-00-523-9406
NSN 5999-01-496-5110
NSN 6620-00-221-6639
NSN 5935-01-017-6626
NSN 6220-00-186-8565
NSN 2925-01-541-5031