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 6320-00-925-0558
NSN 5930-00-725-1461
NSN 6685-01-256-2064
NSN 5905-01-615-9472
NSN 5975-01-115-8453
NSN 7035-01-418-5499
NSN 5998-01-624-7667
NSN 5915-01-601-4993
NSN 7035-00-126-1899
NSN 4140-01-622-6837
NSN 6645-01-240-5499
NSN 5835-01-436-6549