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 6150-01-505-8749
NSN 5835-01-090-8559
NSN 5925-01-469-6068
NSN 6610-01-425-1523
NSN 6645-01-378-3700
NSN 5835-01-360-2657
NSN 6105-00-275-0826
NSN 5935-00-106-1418
NSN 5835-01-441-4746
NSN 6620-01-063-6289
NSN 5895-00-629-4323
NSN 5835-01-340-7722