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 5999-00-229-4986
NSN 4140-01-052-0355
NSN 5998-01-230-0365
NSN 5835-01-026-6006
NSN 7035-00-679-9027
NSN 5975-00-296-9966
NSN 7035-01-245-7973
NSN 2925-00-373-8837
NSN 5925-01-421-2452
NSN 6320-01-271-0247
NSN 5945-01-370-2739
NSN 6130-01-108-9582