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 5960-01-210-9762
NSN 6135-01-238-2878
NSN 5996-00-063-9282
NSN 6320-01-466-4175
NSN 6130-00-796-8760
NSN 5920-00-786-8241
NSN 5999-01-241-0355
NSN 5975-01-478-2925
NSN 5895-01-359-2574
NSN 5985-01-238-2796
NSN 5855-01-519-4301
NSN 5975-00-181-5825