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 6610-01-426-5090
NSN 7035-01-302-5359
NSN 5930-01-589-3873
NSN 6620-00-566-7924
NSN 6610-01-504-7622
NSN 5950-00-222-4745
NSN 5996-00-949-8885
NSN 5996-01-573-6931
NSN 6320-01-185-3857
NSN 4140-01-389-2870
NSN 5950-01-458-0747
NSN 6110-01-230-2637