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 bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts
NSN 6135-00-702-2772
NSN 5985-01-068-5198
NSN 6620-00-280-2874
NSN 5855-01-208-1471
NSN 7035-01-658-1623
NSN 6105-01-245-4329
NSN 5960-01-268-4356
NSN 6620-00-160-0844
NSN 5990-01-378-7349
NSN 6620-01-538-2294
NSN 6110-00-782-1174
NSN 5960-00-185-9974