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 5985-01-230-7020
NSN 6150-00-144-7115
NSN 5930-01-088-7979
NSN 5930-01-386-3068
NSN 5998-01-159-7480
NSN 5975-00-456-7715
NSN 5835-01-297-1909
NSN 6645-00-419-9939
NSN 5960-00-446-5040
NSN 2925-01-029-0467
NSN 5996-00-540-6570
NSN 5920-01-628-7074