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 6645-01-252-9659
NSN 6105-01-184-5200
NSN 5930-01-277-8491
NSN 6620-00-719-5808
NSN 5835-01-398-3859
NSN 5910-01-040-7970
NSN 5925-01-607-0354
NSN 5920-01-046-1062
NSN 6105-00-245-2587
NSN 5855-01-165-2177
NSN 5985-01-424-0149
NSN 6610-00-456-0485