Plastic
An instrument consisting of a jointed arm with one end fastened to a rectangular shaped board and the other end free to move over the surface of the board. Attached to the free end of the arm is either a triangle, a protractor head and triangle, or a protractor head and l-square.
Classification: Drafting tables and machines, whether or not automatic
NSN 6610-00-141-7000
NSN 5960-01-420-2372
NSN 5855-01-656-6808
NSN 5945-01-367-6090
NSN 5915-01-438-2215
NSN 5975-01-235-8514
NSN 5935-01-237-6587
NSN 5945-01-461-8143
NSN 5915-01-069-4010
NSN 6150-01-411-5624
NSN 5975-01-190-6917
NSN 6610-01-274-6223