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 6110-00-669-6586
NSN 6685-01-465-0237
NSN 6645-01-077-9350
NSN 6130-01-246-2264
NSN 6650-00-238-1199
NSN 5905-01-627-4183
NSN 6135-01-086-0809
NSN 5835-00-164-7309
NSN 5990-00-554-0366
NSN 6145-01-600-0910
NSN 6645-00-789-5210
NSN 7035-01-633-9537