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 6620-01-436-3502
NSN 5835-01-381-2683
NSN 5950-01-396-2065
NSN 5999-00-949-8986
NSN 6240-01-502-2530
NSN 5895-01-321-8530
NSN 5915-01-445-1674
NSN 5999-01-369-0795
NSN 6145-01-654-1666
NSN 5998-00-309-4466
NSN 5945-01-461-5764
NSN 5945-01-633-3355