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 5925-01-176-6467
NSN 5935-01-143-3040
NSN 6320-01-569-2672
NSN 6650-01-236-3817
NSN 5835-00-474-6085
NSN 5935-01-106-6218
NSN 6105-01-154-0202
NSN 5950-01-634-0677
NSN 5915-01-149-4064
NSN 5998-00-853-7566
NSN 6610-00-232-1533
NSN 5965-01-425-5857