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 6240-01-254-9448
NSN 6150-01-421-1770
NSN 5960-01-605-9921
NSN 6240-00-931-2395
NSN 5920-00-433-1854
NSN 5855-00-149-0766
NSN 5920-01-481-4454
NSN 7035-01-645-4746
NSN 5835-01-658-4437
NSN 5930-00-094-6905
NSN 6130-00-751-8988
NSN 5855-00-198-3197