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 5930-00-197-0408
NSN 5855-00-466-2309
NSN 7035-00-511-8617
NSN 6320-00-731-6134
NSN 6110-01-487-8867
NSN 5975-01-465-3559
NSN 5998-00-831-3941
NSN 6105-00-995-1208
NSN 5905-01-432-1961
NSN 6240-01-032-5105
NSN 5855-01-379-1410
NSN 6220-01-197-7680