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 5895-01-425-8405
NSN 5996-01-069-5027
NSN 5945-00-820-9792
NSN 5835-00-166-9413
NSN 5855-00-560-0110
NSN 5935-01-365-5558
NSN 5915-00-983-4998
NSN 6105-01-152-4191
NSN 5930-00-346-9297
NSN 5990-00-539-7859
NSN 5915-01-328-2434
NSN 5910-00-519-9134