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 5985-01-592-7628
NSN 6320-01-527-0211
NSN 5915-00-865-0724
NSN 5960-00-654-7300
NSN 5950-00-834-5767
NSN 6105-01-458-6780
NSN 6650-01-244-5614
NSN 6135-01-210-8715
NSN 5935-01-367-2245
NSN 6130-01-197-7397
NSN 5975-01-428-7278
NSN 5910-01-444-0528