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 5990-01-458-2531
NSN 5996-01-470-5522
NSN 6320-01-064-0372
NSN 6110-01-620-1122
NSN 5920-00-823-6088
NSN 5905-01-606-5750
NSN 5960-01-095-6873
NSN 5996-01-354-9386
NSN 6620-01-536-7799
NSN 5965-01-576-8847
NSN 5925-00-568-3631
NSN 5910-01-064-6940