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 5915-01-562-7987
NSN 5915-01-186-6464
NSN 6110-01-384-3913
NSN 5935-01-449-9807
NSN 5998-00-779-3000
NSN 5930-00-885-6867
NSN 6135-01-446-6010
NSN 5915-01-114-3259
NSN 6240-00-008-5263
NSN 6240-01-537-1176
NSN 6105-00-973-7247
NSN 5925-01-632-9612