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 5915-00-652-5656
NSN 5835-01-455-3380
NSN 6145-01-413-3286
NSN 5835-00-289-9080
NSN 6685-01-532-5814
NSN 5915-00-701-9135
NSN 6610-01-352-5500
NSN 6610-00-717-6666
NSN 5965-00-566-4221
NSN 5910-00-887-2614
NSN 6320-00-583-3104
NSN 5985-00-472-3405