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 5998-00-157-3789
NSN 5990-01-118-8624
NSN 2925-01-519-3221
NSN 4140-01-559-4982
NSN 4140-01-010-8183
NSN 6145-01-118-7859
NSN 5895-01-370-4323
NSN 5998-00-310-3295
NSN 6130-01-044-5436
NSN 5999-01-344-3843
NSN 5855-01-100-3272
NSN 6685-01-211-2141