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 6105-00-033-5425
NSN 5998-01-575-9246
NSN 6320-01-498-4954
NSN 5975-00-580-0434
NSN 6645-01-461-9250
NSN 6320-01-371-3047
NSN 5905-00-277-7439
NSN 5960-01-399-4327
NSN 6130-01-544-8614
NSN 6240-01-442-7746
NSN 5990-01-604-0862
NSN 6650-01-221-5367