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 5910-00-926-0111
NSN 5975-01-468-6319
NSN 5996-01-156-4092
NSN 6110-01-285-0315
NSN 6320-00-994-0179
NSN 6240-00-103-5296
NSN 5965-00-686-7067
NSN 5910-01-485-0154
NSN 5996-01-020-0567
NSN 5895-01-425-2718
NSN 5990-00-422-2093
NSN 6110-01-495-1962