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 5996-01-393-7166
NSN 7035-01-209-5315
NSN 6135-01-252-0315
NSN 5935-00-225-1841
NSN 6110-01-629-3278
NSN 6145-01-123-1508
NSN 5915-00-531-8393
NSN 5905-01-547-5126
NSN 5935-00-199-7619
NSN 6130-00-554-7852
NSN 5855-01-546-5421
NSN 5990-00-136-9609