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 7035-01-481-8247
NSN 6240-01-476-7935
NSN 5975-01-599-8915
NSN 6650-00-735-6611
NSN 6620-01-131-1471
NSN 6240-00-951-3376
NSN 5945-00-938-8761
NSN 5999-01-361-2033
NSN 5855-01-245-8689
NSN 5835-00-498-8189
NSN 6620-01-624-3933
NSN 6650-00-273-8732