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 5905-00-673-6454
NSN 5835-00-967-0998
NSN 5895-01-585-8166
NSN 6240-01-171-0374
NSN 6135-01-314-8416
NSN 5999-01-122-3961
NSN 5930-01-062-2202
NSN 5925-01-367-2519
NSN 5985-01-202-9691
NSN 5975-01-164-0320
NSN 5895-01-419-0145
NSN 5915-00-925-1883