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 6320-01-054-3046
NSN 6685-01-208-1319
NSN 5998-01-428-5843
NSN 5930-01-599-5823
NSN 6610-01-628-6044
NSN 5990-01-054-4255
NSN 6135-01-654-6147
NSN 4140-01-531-3080
NSN 2925-01-515-3032
NSN 5930-01-069-1248
NSN 6145-01-499-2860
NSN 6135-01-062-9356