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 5910-01-385-1958
NSN 6240-01-250-3574
NSN 5985-01-471-6480
NSN 6130-01-422-0563
NSN 6145-00-822-6095
NSN 2925-01-547-4565
NSN 5990-01-432-4249
NSN 5935-00-239-3489
NSN 5920-00-529-0618
NSN 5960-00-338-9164
NSN 6150-00-233-6356
NSN 5965-01-270-1039