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 5930-01-555-7802
NSN 6135-00-708-0892
NSN 5990-01-633-9503
NSN 6150-01-350-3713
NSN 5945-00-462-4438
NSN 5985-00-139-6025
NSN 5975-01-378-6578
NSN 5855-01-255-1688
NSN 5965-01-514-7231
NSN 6620-00-010-8190
NSN 5990-01-652-7373
NSN 4140-01-539-7481