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 5855-00-079-2370
NSN 5905-01-610-3215
NSN 5999-00-727-8787
NSN 6220-01-260-1097
NSN 4140-01-253-3288
NSN 5998-01-641-8457
NSN 5835-00-711-1390
NSN 5930-00-974-6586
NSN 6320-01-425-1417
NSN 6685-01-036-4410
NSN 7035-00-312-3055
NSN 2925-01-362-2515