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 5855-00-189-6066
NSN 2925-00-386-8745
NSN 6135-01-210-8715
NSN 6620-01-323-6091
NSN 6135-00-262-6807
NSN 7035-00-541-8516
NSN 5945-01-504-0708
NSN 5915-00-151-7849
NSN 5965-00-583-4865
NSN 5925-00-935-5287
NSN 6150-01-283-2399
NSN 6145-00-269-4271