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 6620-01-602-8402
NSN 5965-01-250-3214
NSN 5990-01-425-2175
NSN 5925-01-606-5350
NSN 5990-01-485-0260
NSN 5990-01-261-2962
NSN 6320-01-397-0399
NSN 6650-01-289-0524
NSN 6130-01-364-0339
NSN 2925-01-037-5383
NSN 6620-01-044-3371
NSN 5945-01-505-4558