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 6240-01-186-6448
NSN 5999-00-585-3338
NSN 6240-01-466-4718
NSN 6320-01-522-0318
NSN 6110-01-323-1970
NSN 5905-01-390-6867
NSN 5999-01-059-7548
NSN 6685-01-607-6251
NSN 5960-01-582-6167
NSN 5950-01-605-1386
NSN 6110-00-263-6664
NSN 5930-01-607-0325