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 6685-00-960-4982
NSN 6645-00-708-8569
NSN 6135-01-540-5253
NSN 5965-01-492-5695
NSN 6240-01-147-0379
NSN 5999-01-004-6482
NSN 6650-01-039-9340
NSN 5835-01-561-2959
NSN 5975-01-477-1186
NSN 5835-00-364-0816
NSN 5965-01-439-0793
NSN 5910-00-276-6883