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 5920-00-003-5845
NSN 5930-01-386-5571
NSN 5915-01-256-8812
NSN 2925-01-594-0198
NSN 6650-00-994-9843
NSN 5945-00-911-0032
NSN 6240-01-234-7893
NSN 7035-01-309-6709
NSN 5960-00-721-1744
NSN 5975-01-318-9913
NSN 5990-00-024-9985
NSN 5960-01-179-4009