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 for steam turbines
NSN 6110-00-165-1528
NSN 6110-01-465-2800
NSN 5945-00-296-8464
NSN 5999-01-367-7334
NSN 6610-01-339-5254
NSN 5996-00-122-6578
NSN 6240-01-317-5748
NSN 5975-01-351-1159
NSN 5920-00-621-6601
NSN 5950-01-035-4466
NSN 5915-00-139-1628
NSN 6150-00-740-0813