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 6620-01-586-3456
NSN 5999-01-275-3103
NSN 6150-01-627-9873
NSN 5965-00-289-6280
NSN 6645-01-601-5473
NSN 6150-01-251-5644
NSN 5965-00-434-7617
NSN 6110-00-913-6474
NSN 5925-01-378-6857
NSN 5910-01-271-0875
NSN 5999-01-278-9377
NSN 6110-00-064-5478