4730-01-398-4600 (1 1/2 X 1 1/4 103112X114)
4730-01-398-4600 is equivalent to manufacture part number 103. It is a pipe reducer and is classified under Federal Supply Class 4730 (4730 - Hose, Pipe, Tube, and Fittings), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4730 - Hose, Pipe, Tube, and Fittings and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.