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 5910-00-538-7982
NSN 6645-01-429-6768
NSN 5975-01-384-3019
NSN 6685-00-188-1991
NSN 6135-01-351-2690
NSN 5930-01-424-6423
NSN 6220-01-155-2357
NSN 6145-00-647-3660
NSN 6620-01-068-4498
NSN 5998-01-121-2987
NSN 5960-01-318-0987
NSN 6220-01-288-5235