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 5910-01-004-6419
NSN 2925-00-740-7029
NSN 5990-00-686-5868
NSN 2925-01-131-4531
NSN 5855-01-038-2189
NSN 5930-01-232-1968
NSN 5996-01-082-5854
NSN 5915-01-130-5941
NSN 5935-01-359-2065
NSN 6620-00-923-5137
NSN 6105-01-575-9013
NSN 6150-01-502-5685