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 6105-01-512-1831
NSN 6130-01-490-7423
NSN 6685-01-239-0516
NSN 5925-01-077-3137
NSN 6320-01-084-8821
NSN 6145-01-579-0768
NSN 6150-01-438-6654
NSN 6150-01-634-0575
NSN 5935-01-587-2482
NSN 5895-01-392-1054
NSN 6620-01-361-4796
NSN 6220-00-113-3166