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 5975-01-413-3493
NSN 5905-00-391-6398
NSN 6150-01-289-5090
NSN 5925-01-382-9313
NSN 5945-01-098-5319
NSN 6130-01-324-4730
NSN 6130-01-378-0205
NSN 5935-00-951-4586
NSN 2925-01-560-0517
NSN 5950-01-609-3039
NSN 5990-01-443-2931
NSN 5990-01-352-5255