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 5945-00-445-3683
NSN 6130-01-474-4309
NSN 5905-01-553-1308
NSN 5835-01-029-1702
NSN 6240-00-144-4693
NSN 6135-00-826-4798
NSN 6220-00-391-1076
NSN 6220-01-421-4448
NSN 6105-00-302-5793
NSN 5950-01-399-8677
NSN 5965-01-222-1420
NSN 5905-01-621-9823