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 5950-00-198-5913
NSN 5920-01-366-5991
NSN 6645-01-279-2414
NSN 6220-00-299-6300
NSN 7035-01-332-3496
NSN 6110-00-946-3060
NSN 5930-01-218-5378
NSN 5935-00-880-7001
NSN 5999-01-525-6949
NSN 5930-01-259-0914
NSN 5905-00-900-5490
NSN 6650-01-500-1756