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 6610-01-524-7068
NSN 6110-00-011-3711
NSN 5996-01-571-7556
NSN 6610-01-353-6685
NSN 6145-00-216-6613
NSN 5915-01-499-0581
NSN 6620-00-555-3992
NSN 5975-01-104-5589
NSN 6320-01-521-1764
NSN 5855-01-474-6820
NSN 5930-01-554-7142
NSN 4140-01-452-2526