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 5935-01-432-4245
NSN 5975-01-373-5864
NSN 5895-00-066-6663
NSN 5855-01-073-3904
NSN 5915-01-551-0745
NSN 5999-01-337-2051
NSN 5935-01-377-1140
NSN 5985-00-852-6192
NSN 6320-01-350-5570
NSN 5920-00-100-2582
NSN 6150-01-214-2362
NSN 6110-00-633-4544