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 4140-01-197-7658
NSN 6610-01-114-2013
NSN 5996-00-187-6266
NSN 5960-00-511-1418
NSN 5935-01-481-2518
NSN 6150-01-090-0720
NSN 5910-00-330-9378
NSN 5998-00-297-4635
NSN 6105-00-583-9958
NSN 5895-01-451-3535
NSN 5950-01-444-5530
NSN 5895-00-842-9457