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 6130-01-421-2705
NSN 6645-00-108-6479
NSN 5920-01-017-5438
NSN 6650-01-262-7296
NSN 5950-01-291-0305
NSN 5930-00-268-1941
NSN 5935-01-634-0668
NSN 6105-01-080-5934
NSN 5990-00-060-7009
NSN 6610-00-012-4624
NSN 6145-00-918-9494
NSN 7035-01-429-0431