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 5910-01-463-3154
NSN 6130-01-433-9646
NSN 6650-00-547-4557
NSN 5925-00-098-8932
NSN 6150-01-392-3036
NSN 6220-01-206-4410
NSN 6610-01-468-4317
NSN 2925-01-429-2235
NSN 6620-00-450-5703
NSN 6110-01-152-2547
NSN 5920-01-063-7799
NSN 6645-00-658-7838