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 6105-01-359-3886
NSN 6145-01-054-7463
NSN 5998-00-118-6699
NSN 5950-00-460-6018
NSN 5990-01-476-9956
NSN 5960-01-512-0233
NSN 6135-00-973-5632
NSN 5925-01-643-8388
NSN 5835-01-406-4066
NSN 6645-00-276-7544
NSN 5965-00-422-5415
NSN 5950-01-174-6619