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 5990-00-202-5127
NSN 6240-00-270-8182
NSN 5855-00-862-3345
NSN 5895-00-128-6783
NSN 5999-01-144-3042
NSN 6145-01-492-6672
NSN 5895-01-043-2620
NSN 6110-01-652-9108
NSN 5910-01-552-2271
NSN 6650-01-519-9165
NSN 6685-01-589-8522
NSN 5960-01-144-5502