Length: 445 millimeters.
Width: 239 millimeters.
Height: 175 millimeters.
Internal action: Mechanical with hinged striker release.
Initiating action: Removal of restraining weight, 2.25 kilograms or more.
Accessories: Pressure board. Safeties: Safety pin and hole for interceptor pin.
Packaging: Four complete FDs and four plywood pressure boards are packaged in a paper carton, five cartons are packaged in a fiberboard box, and 10 fiberboard boxes are shipped in a wooden box.