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 5910-01-653-4203
NSN 5915-00-691-2702
NSN 5985-00-831-4734
NSN 5935-01-422-2495
NSN 6320-01-029-4220
NSN 5855-00-149-0766
NSN 5835-01-227-2318
NSN 5985-01-142-8188
NSN 5905-00-488-8959
NSN 6320-01-412-2973
NSN 5950-01-349-3193
NSN 5930-00-518-1451