"C/O 1 BUSHING 2 IN. LG BY 2.25 IN DIA, 1 LB MATL STEEL, 1 ARBOR 3 IN LG BY 2 IN DIA, 2 LBS MATL STEEL, 2 CUTTERS 4 IN. LG BY 1.280 IN. DIA AND 4 IN. LG BY 1.375 IN. DIA, EACH 1 LB MATL STEEL. USED TO REMOVE FRAGMENTED DISC FROM DISCHARGE OUTLET OF APU FIRE EXTINGUISHER PRIOR TO WELDING NEW DISC; REPLACES PART OF SERD 490020, 3455-01-304-4089"