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 5960-01-060-4375
NSN 5965-00-244-8428
NSN 6650-01-124-1902
NSN 5920-01-517-2868
NSN 5960-00-994-4452
NSN 6135-01-213-7339
NSN 5985-01-085-5573
NSN 5999-01-197-3216
NSN 5990-00-404-2451
NSN 5935-01-065-7484
NSN 5945-01-053-1150
NSN 6150-01-472-7956