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 6685-00-711-0616
NSN 6110-01-119-5996
NSN 6220-00-888-2224
NSN 5915-00-605-7560
NSN 5935-00-527-8657
NSN 6135-00-931-9049
NSN 5920-01-534-6495
NSN 5920-01-526-5651
NSN 5835-01-469-6009
NSN 5835-01-519-2916
NSN 7035-01-348-5153
NSN 5996-01-225-1850