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 6150-00-393-0498
NSN 5945-01-596-8245
NSN 5915-01-633-9845
NSN 6645-00-200-2324
NSN 6610-01-338-6272
NSN 6620-01-333-7014
NSN 6645-00-242-0480
NSN 6320-01-512-2031
NSN 6220-01-482-4671
NSN 6320-01-352-5653
NSN 6645-01-651-9562
NSN 2925-01-599-1901