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 7035-01-423-8343
NSN 5985-01-088-3262
NSN 5935-00-357-3496
NSN 6150-01-296-3396
NSN 5996-00-732-6552
NSN 5930-01-375-6651
NSN 6130-00-724-7646
NSN 4140-01-111-8297
NSN 6685-00-769-5697
NSN 5895-00-123-0354
NSN 6150-01-247-1063
NSN 5905-00-957-2271