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 5935-00-020-2954
NSN 5960-00-724-7969
NSN 5855-00-294-7532
NSN 6645-01-556-5263
NSN 6240-01-461-3129
NSN 6130-01-108-6981
NSN 5920-01-623-4260
NSN 6645-01-217-2888
NSN 5990-01-331-7071
NSN 5965-01-058-9785
NSN 5998-00-273-3980
NSN 5950-01-195-3442