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 6105-01-447-4483
NSN 5835-01-579-5941
NSN 5910-00-111-1332
NSN 6645-00-226-2270
NSN 5990-01-437-4876
NSN 5935-01-555-1430
NSN 5935-01-567-9877
NSN 5965-01-272-4199
NSN 5965-00-973-9974
NSN 5930-00-027-1343
NSN 5999-00-396-6916
NSN 6620-01-454-8926