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 5920-01-350-1256
NSN 6240-01-528-7108
NSN 5925-01-426-3767
NSN 5920-01-308-6423
NSN 5999-01-425-1377
NSN 6110-00-953-1027
NSN 6645-00-456-7653
NSN 6135-01-116-3385
NSN 2925-01-068-3844
NSN 5930-00-452-0439
NSN 7035-01-024-8067
NSN 4140-01-646-8572