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 4140-01-123-8312
NSN 5998-01-503-3382
NSN 6130-00-833-3133
NSN 5985-00-710-4500
NSN 6110-01-055-6442
NSN 6320-00-164-4087
NSN 6105-00-815-2901
NSN 5998-00-230-6664
NSN 6105-01-462-8351
NSN 6110-00-087-0227
NSN 5895-00-501-8174
NSN 5945-01-617-7527