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 4140-01-121-2182
NSN 5950-00-288-1812
NSN 6220-01-069-2340
NSN 5925-01-210-9765
NSN 5975-00-707-8036
NSN 5945-01-573-2655
NSN 6320-00-116-3658
NSN 6685-01-658-2002
NSN 5985-01-556-4421
NSN 6645-01-566-3205
NSN 6645-01-261-6903
NSN 5910-00-858-8865