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 4140-00-450-1989
NSN 5920-01-372-0225
NSN 6240-01-204-1918
NSN 5920-01-534-7042
NSN 5930-00-682-4408
NSN 5999-01-047-2569
NSN 6105-00-144-1754
NSN 5985-00-687-1046
NSN 6110-01-655-5030
NSN 6240-00-247-7358
NSN 6135-01-394-4160
NSN 5999-01-545-9469