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 of taps, cocks, valves and similar appliances, nesoi
NSN 5975-00-430-1220
NSN 6110-00-141-1966
NSN 7035-00-205-8739
NSN 6685-00-935-6903
NSN 5945-01-545-4622
NSN 5990-00-412-4411
NSN 5835-01-332-2867
NSN 5965-01-021-4163
NSN 5855-01-068-3683
NSN 5996-01-435-5547
NSN 6685-01-075-3732
NSN 6220-00-782-2058