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 5935-01-634-0668
NSN 5960-00-975-2251
NSN 6320-01-539-0006
NSN 4140-01-471-4812
NSN 5905-00-472-2740
NSN 5915-00-932-3040
NSN 5930-01-415-9712
NSN 5945-01-413-4318
NSN 6105-00-665-8581
NSN 5950-00-759-2790
NSN 4140-01-312-8001
NSN 5835-01-442-6079