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 5920-01-072-6610
NSN 6240-01-212-3255
NSN 5930-00-191-5972
NSN 5835-00-378-1429
NSN 5855-00-631-4565
NSN 5835-01-512-4834
NSN 5910-00-925-1748
NSN 6130-00-035-3898
NSN 6320-01-393-7022
NSN 5990-01-485-0260
NSN 6135-01-462-6040
NSN 5855-00-256-5562