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 5960-01-352-0451
NSN 5945-01-056-5540
NSN 5855-01-020-3777
NSN 5835-00-612-1621
NSN 5999-00-117-4119
NSN 6240-01-380-6466
NSN 5905-00-840-8486
NSN 5945-01-035-0346
NSN 5998-00-615-9251
NSN 5925-00-049-7476
NSN 5990-01-219-9018
NSN 6145-00-907-9399