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 5910-01-138-7243
NSN 6220-01-113-6431
NSN 5965-01-621-8547
NSN 5855-00-337-3679
NSN 6105-01-462-0766
NSN 5935-01-398-1408
NSN 5996-01-642-4224
NSN 5945-01-314-7245
NSN 6240-00-402-2386
NSN 5990-01-540-1619
NSN 5996-00-494-0763
NSN 5915-01-507-8871