A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.
Classification: Parts of turbojet and turbopropeller aircraft engines, other than for use in civil aircraft
NSN 5920-01-055-2024
NSN 5965-01-175-4839
NSN 5990-00-320-2779
NSN 5996-00-914-6298
NSN 5985-00-194-9380
NSN 6105-01-261-4663
NSN 6150-00-864-0363
NSN 5965-01-415-2898
NSN 5915-01-180-0344
NSN 5930-01-432-3942
NSN 6650-01-364-0299
NSN 5990-01-008-2515