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 5999-01-224-7260
NSN 2925-01-172-9209
NSN 6220-01-229-8821
NSN 5915-00-197-8610
NSN 5905-01-634-0595
NSN 5925-01-217-6009
NSN 5895-01-278-5297
NSN 6150-00-445-5438
NSN 6220-00-753-8593
NSN 5935-01-533-7867
NSN 5935-01-461-1742
NSN 2925-00-394-2332