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 5990-01-306-7642
NSN 6145-00-839-3369
NSN 6150-01-531-0102
NSN 4140-01-606-7079
NSN 5985-01-521-8279
NSN 6150-00-644-8745
NSN 5910-01-645-7374
NSN 6105-00-221-5049
NSN 5835-01-351-8429
NSN 5975-01-382-3219
NSN 2925-00-797-1042
NSN 6320-01-219-5174