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 5985-00-878-8819
NSN 5960-01-539-1956
NSN 5855-01-611-0382
NSN 6650-01-509-8018
NSN 6110-00-463-6158
NSN 5910-01-530-6772
NSN 6645-00-192-1152
NSN 6135-00-686-4777
NSN 5855-01-147-6024
NSN 5985-01-127-7716
NSN 6135-00-782-6988
NSN 6110-01-602-8575