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 7035-01-006-3186
NSN 6320-00-790-4844
NSN 5945-00-904-4291
NSN 2925-01-471-4912
NSN 6150-01-230-5522
NSN 5975-01-095-5122
NSN 5835-01-193-6192
NSN 5920-00-296-9869
NSN 6685-00-647-3883
NSN 4140-01-547-1851
NSN 6110-01-310-8476
NSN 6610-01-546-9693