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 2925-01-468-7073
NSN 5920-01-099-5971
NSN 5996-01-367-6557
NSN 6610-01-077-0601
NSN 5920-00-291-1379
NSN 5915-01-205-2933
NSN 5895-01-651-6254
NSN 5910-01-093-8586
NSN 6130-00-054-1038
NSN 6130-01-388-2092
NSN 5945-01-472-2099
NSN 6135-01-485-3450