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 6685-00-709-1695
NSN 6135-01-434-6308
NSN 5996-01-250-7374
NSN 5915-01-319-9062
NSN 6150-00-737-2400
NSN 5895-01-319-8331
NSN 5998-01-629-9591
NSN 5915-01-100-4105
NSN 5975-01-088-8371
NSN 5996-00-938-4878
NSN 6650-01-168-8451
NSN 6610-00-497-8473