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 5905-00-082-1927
NSN 6645-00-300-0401
NSN 6645-01-329-2363
NSN 5855-01-483-1350
NSN 5960-01-278-9394
NSN 4140-01-445-4241
NSN 6110-01-484-2899
NSN 5935-01-187-2698
NSN 6685-00-538-8656
NSN 6320-01-380-0561
NSN 6650-01-119-4576
NSN 5855-00-548-4742