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 5960-00-985-2783
NSN 5999-00-781-1088
NSN 4140-00-914-5767
NSN 5855-01-506-6767
NSN 6240-01-396-4779
NSN 5925-01-630-8943
NSN 5960-01-291-0479
NSN 6110-01-136-1497
NSN 5996-01-263-6776
NSN 5905-00-901-5906
NSN 5895-01-386-3049
NSN 6135-01-470-4077