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 6135-01-609-6476
NSN 5985-01-079-2859
NSN 6105-01-271-2834
NSN 5935-01-172-4996
NSN 5835-01-435-4139
NSN 6650-00-466-1697
NSN 6110-01-239-9319
NSN 5835-01-608-8868
NSN 6150-01-136-3770
NSN 6610-01-525-8235
NSN 5910-01-011-7642
NSN 5905-01-230-2870