DOOR,HATCH,VEHICLE - United States (US)
A rigid metallic item of various shapes specifically designed to cover an ingress or egress opening of a vehicular hull, turret, or the like. It may be armor plated. It may be either hinged or of a drop type and may have a quick release or other type latching device. Excludes COVER, ACCESS and DOOR, METAL, SWINGING. See also HATCH, MARINE.