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 7035-01-099-9163
NSN 5999-00-335-1433
NSN 4140-01-218-9013
NSN 5996-00-456-0895
NSN 5985-01-156-1379
NSN 6685-00-586-6048
NSN 5960-01-553-4557
NSN 5935-00-152-7623
NSN 5960-00-215-5884
NSN 5925-00-723-4982
NSN 5950-01-399-0248
NSN 5996-01-067-8716