Hammond 1593 Series Instrument Enclosures – Hammond 1593NBK, Hand-held black instrument enclosure from the Hammond 1593 series, 110mm in length, 75mm wide and 25mm high. Ergonomically designed for a comfortable fit into the user’s hand, this enclosure has a recessed top for membrane display. The unit is secured with self-tapping screws, and is ideally suited for mounting printed circuit boards. Hammond 1593NBK Instrument Case GPABS 110 x 75 x 25, Black