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 5999-01-573-0063
NSN 6685-01-623-4227
NSN 6610-01-109-3359
NSN 6145-00-423-1563
NSN 5990-01-374-3877
NSN 5895-01-231-1093
NSN 6320-01-415-0953
NSN 5990-01-462-1617
NSN 5996-01-170-0168
NSN 5950-00-493-7598
NSN 7035-01-348-5153
NSN 6145-00-968-6603