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 5996-00-583-9498
NSN 6645-01-139-0156
NSN 5999-01-179-5773
NSN 5920-01-371-3112
NSN 5960-01-234-4388
NSN 5925-01-279-6364
NSN 5855-00-327-2112
NSN 6145-00-180-4791
NSN 6130-00-707-5931
NSN 5985-01-418-3313
NSN 5895-00-594-8819
NSN 6610-00-394-1427