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 5996-00-782-1365
NSN 5925-01-419-2525
NSN 5960-01-076-2916
NSN 6105-01-650-4242
NSN 6645-01-455-1293
NSN 6610-01-140-3634
NSN 6320-00-216-8779
NSN 5930-00-497-7777
NSN 5960-01-416-6187
NSN 6110-01-364-2145
NSN 5855-00-058-1293
NSN 5998-01-087-8112