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 6240-01-389-6918
NSN 5915-01-168-6570
NSN 5999-01-052-8459
NSN 6220-01-191-7643
NSN 5835-00-540-9669
NSN 5960-01-370-4285
NSN 6130-01-068-2156
NSN 5835-00-092-1136
NSN 4140-00-232-1039
NSN 6110-01-027-0091
NSN 6130-01-110-5694
NSN 5835-01-632-6627