Protractor assembly
A flat, steel plate of rectangular, square or semicircular shape, graduated in degrees. A pivoted arm is attached to the plate by means of a stationary bolt and thumb nut which locks the arm in any desired position. Used primarily in the metal working trades for laying out and transferring angles, scribing lines, and checking clearances on end mills and the like. Excludes protractor, one arm; protractor, two arm; protractor, three arm.
Classification: Dis calculators, slide rulers and other mathematical calculating instruments
NSN 6645-01-502-1901
NSN 6620-01-640-6761
NSN 5920-01-429-2213
NSN 6320-01-006-6138
NSN 5945-01-539-3910
NSN 6240-01-420-9255
NSN 4140-01-653-9368
NSN 6150-01-068-4672
NSN 5990-01-362-7532
NSN 5998-00-658-3303
NSN 5950-01-049-3912
NSN 5855-00-198-3197