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 5945-01-630-9383
NSN 6105-01-069-5088
NSN 5855-01-045-9728
NSN 5996-00-712-7536
NSN 5835-00-275-0584
NSN 6645-01-116-3423
NSN 6110-01-235-7470
NSN 6610-01-500-0863
NSN 5935-01-622-2596
NSN 6240-01-334-6961
NSN 5855-01-100-3272
NSN 5895-00-943-1913