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 5985-00-466-0205
NSN 6145-01-329-5935
NSN 5855-00-821-7512
NSN 5895-01-432-2370
NSN 6145-01-108-7715
NSN 5920-00-073-5507
NSN 5855-01-592-3128
NSN 6150-01-619-3349
NSN 2925-01-218-5556
NSN 5990-01-263-0362
NSN 6150-01-384-9109
NSN 5985-01-213-0749