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 5965-00-224-6034
NSN 6130-01-450-4168
NSN 5996-01-506-7585
NSN 5998-01-303-6218
NSN 5935-01-645-0329
NSN 5855-01-612-7608
NSN 7035-00-079-7189
NSN 5965-00-961-1627
NSN 5985-00-073-8875
NSN 2925-01-461-4347
NSN 2925-00-595-7525
NSN 5915-00-082-5039