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 6105-01-147-5586
NSN 5855-00-288-1408
NSN 5999-00-283-6533
NSN 6110-00-596-9124
NSN 5915-01-494-2078
NSN 5835-01-004-8997
NSN 2925-01-437-9041
NSN 6135-01-174-8057
NSN 6220-00-809-6071
NSN 6320-01-246-4390
NSN 5925-00-086-5165
NSN 7035-00-870-0290