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 5998-01-077-7498
NSN 6240-01-308-1848
NSN 5895-01-356-1681
NSN 6105-00-801-1003
NSN 2925-01-308-6220
NSN 6110-01-461-9617
NSN 5965-01-204-8505
NSN 5915-00-135-4315
NSN 4140-01-072-0729
NSN 4140-01-457-5539
NSN 5910-00-534-1931
NSN 6150-01-655-4278