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 6130-00-747-9714
NSN 5985-01-656-0834
NSN 2925-00-147-8150
NSN 6110-01-138-5078
NSN 7035-01-537-0408
NSN 6150-00-288-4267
NSN 5945-01-640-7097
NSN 6110-01-089-4658
NSN 5945-00-092-2134
NSN 6145-00-116-7810
NSN 5895-00-287-6375
NSN 5975-01-146-1603