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 5920-00-526-0462
NSN 7035-01-377-6255
NSN 6145-01-514-7305
NSN 6220-00-264-9473
NSN 6105-01-401-5361
NSN 6130-01-556-9747
NSN 6685-01-291-1332
NSN 6610-01-327-3187
NSN 6220-01-197-0013
NSN 5925-00-843-0315
NSN 7035-01-645-4746
NSN 6110-00-054-2527