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 5960-01-522-0391
NSN 5998-00-126-5064
NSN 6240-00-265-6538
NSN 6610-01-070-0230
NSN 5999-01-253-5231
NSN 2925-01-101-0034
NSN 5985-01-154-9195
NSN 2925-01-650-3412
NSN 6645-01-245-8390
NSN 6150-01-370-0504
NSN 6130-01-190-0692
NSN 5965-01-230-5521