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 5930-01-496-3656
NSN 5910-00-637-2609
NSN 5925-01-658-5785
NSN 5905-01-088-7416
NSN 6320-01-366-5157
NSN 5905-00-282-6853
NSN 6110-01-212-9568
NSN 6110-01-443-8580
NSN 5925-00-706-4582
NSN 5930-00-596-9276
NSN 5835-01-014-4574
NSN 5990-00-005-5215