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 6620-01-336-6646
NSN 5855-01-476-4219
NSN 5996-01-431-4353
NSN 6145-01-357-2182
NSN 5965-01-433-1974
NSN 5950-00-225-0358
NSN 5910-01-301-4803
NSN 6610-01-112-8137
NSN 6105-01-060-1704
NSN 5925-01-383-9603
NSN 5985-01-386-3752
NSN 5935-01-554-2736