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 5950-00-333-4555
NSN 6645-01-436-9702
NSN 5990-01-147-5225
NSN 7035-00-442-1869
NSN 6220-01-027-6244
NSN 6240-00-527-8614
NSN 5998-01-510-3837
NSN 7035-00-088-7355
NSN 5930-01-135-2056
NSN 6150-01-608-4719
NSN 6610-01-122-0064
NSN 5965-00-603-9306