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 5950-01-098-8634
NSN 6105-01-370-8773
NSN 6150-01-615-4683
NSN 5945-00-337-6767
NSN 5945-00-906-8125
NSN 5925-00-132-4305
NSN 6320-01-094-2634
NSN 6130-01-565-9393
NSN 6645-01-348-5722
NSN 6135-01-392-4160
NSN 6150-00-949-9889
NSN 5855-01-513-9601