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 6150-01-643-0611
NSN 6645-01-455-1293
NSN 7035-01-083-0282
NSN 4140-00-246-4969
NSN 5975-00-890-5201
NSN 6130-01-585-6001
NSN 5930-01-633-9262
NSN 6220-01-128-5814
NSN 6320-00-557-3079
NSN 6620-01-595-0024
NSN 7035-00-679-9027
NSN 5895-01-025-9295