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 5895-01-076-5356
NSN 2925-01-011-2325
NSN 6150-00-835-7772
NSN 5945-01-043-1676
NSN 6135-01-468-6491
NSN 5999-01-325-9903
NSN 6145-01-449-1343
NSN 5895-00-892-3343
NSN 5835-01-177-0375
NSN 6110-01-037-7368
NSN 6610-01-092-7554
NSN 5855-01-442-5401