"ALUMINUM,QQ-A-250/12,APPROX 6.000 IN. LG,2.680 IN. W,0.562 IN. THK,W/1 SLOTTED HOLE 1.560 IN. LG BY 0.523 IN. W,ONE END THD 0.500-20 UNF-3A APPROX 1.500 IN. LG,TWO HELI-COIL INSERTS THD SIZE 1/4 IN-20 INSERTED IN EACH END OF PLATE,APPL TO T38 AIRCRAFT"