Hammond 1590 series diecast enclosures with cast in pcb guides hammond 1590wnbk this hammond 1590wnbk enclosure measures 121 x 66 x 40mm and is part of a range of black finished watertight diecast aluminium boxes suitable for a wide range of applications hammond 1590wnbk watertight diecast enclosure 121 x 66 x 40 black