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 5935-01-421-4827
NSN 5998-01-160-4927
NSN 5999-00-765-0866
NSN 5925-01-632-5916
NSN 6150-01-633-9507
NSN 6110-01-534-6299
NSN 6240-01-298-0470
NSN 5920-00-075-9904
NSN 2925-01-336-2820
NSN 6320-01-498-4954
NSN 5835-01-606-8768
NSN 4140-01-495-1352