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 5985-00-154-0151
NSN 6145-00-470-1606
NSN 5999-01-448-0209
NSN 7035-01-556-2554
NSN 5996-01-542-6840
NSN 6320-01-136-6842
NSN 6645-01-468-4990
NSN 5950-00-206-0392
NSN 6135-00-753-2276
NSN 6685-01-606-5739
NSN 5975-01-181-8328
NSN 6145-00-925-0767