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 5960-00-157-4062
NSN 6110-00-384-1704
NSN 4140-01-262-2255
NSN 5998-00-227-1118
NSN 5990-01-503-0194
NSN 5985-01-024-2998
NSN 5915-01-067-8915
NSN 6685-01-191-5067
NSN 2925-01-348-8306
NSN 5905-01-241-9828
NSN 2925-01-539-4486
NSN 6220-00-395-5225