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 6145-01-536-0189
NSN 5998-00-181-1604
NSN 6240-00-527-8614
NSN 5935-01-524-1040
NSN 5915-01-386-3614
NSN 6110-01-418-6589
NSN 5990-01-432-4984
NSN 6650-01-338-9998
NSN 5920-01-085-6437
NSN 6135-01-216-5479
NSN 6620-01-250-1692
NSN 5975-01-406-4249