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 5945-01-076-4463
NSN 6645-00-988-3167
NSN 6135-00-191-6444
NSN 5975-01-153-1927
NSN 5945-01-574-2861
NSN 6135-00-240-3200
NSN 6650-01-254-3690
NSN 5895-01-476-8124
NSN 5905-00-149-9248
NSN 5915-01-296-2204
NSN 5998-01-202-2654
NSN 6240-01-509-1905