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 5835-01-534-3172
NSN 5965-00-011-3639
NSN 6240-01-184-6831
NSN 6105-00-506-2331
NSN 6240-01-332-9214
NSN 5925-00-715-2001
NSN 5960-01-233-7667
NSN 5985-01-519-3138
NSN 6320-00-194-4252
NSN 5950-00-856-3569
NSN 6645-00-283-6794
NSN 5985-01-548-6515