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 5910-01-441-3690
NSN 6610-01-592-1551
NSN 5835-01-406-4066
NSN 5930-01-010-2289
NSN 5855-00-688-9954
NSN 6320-00-578-6898
NSN 6610-00-917-5656
NSN 5990-01-320-1412
NSN 6320-01-039-5891
NSN 6145-00-472-9413
NSN 7035-01-013-9889
NSN 5910-01-294-5701