HM152 BOX ALUM ALUM 4.67 X 3.68 X 1.18 This is from a parts list of unkown origin, but I believe it is correct. Darned if I recall whose number the HM152 is, but the dimensions might be the thing you need. All the other parts in the list are Digikey part numbers, so maybe it is as well. 73 Mike kD7TS