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 6105-00-490-6035
NSN 6220-00-852-0367
NSN 6105-00-226-2185
NSN 5996-00-899-6992
NSN 6110-01-649-5337
NSN 6610-01-232-0814
NSN 6645-01-424-2891
NSN 5905-01-180-5539
NSN 5915-00-978-4932
NSN 5990-00-705-4350
NSN 6105-00-594-2006
NSN 5965-01-007-1963