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 5945-01-087-9555
NSN 5930-01-032-5244
NSN 5915-01-246-3580
NSN 6620-00-630-8812
NSN 6220-01-306-4704
NSN 4140-00-071-2209
NSN 6620-01-303-2563
NSN 6135-01-351-1131
NSN 7035-00-763-6180
NSN 6645-01-261-6903
NSN 5960-01-602-6009
NSN 6130-01-034-0475