Enclosure assembly, size 12x17x5 inches deep. Brass, submersible to 15 feet. Normally furnished with domed (Type A) cover. Also available with flat (Type B) cover. Part number M24142/6-009 per MIL-E-24142/6. NSN 5975-01-384-5809. Provisions can be made for installation of a mounting plate for components inside the box and a suitable plate can be supplied to meet your requirements. The box is normally furnished 5 inches deep. It is also available with a depth of 3 inches on special order.