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 6135-01-606-8140
NSN 5990-00-874-3036
NSN 5930-01-568-4441
NSN 4140-01-025-7404
NSN 5925-00-576-8179
NSN 5930-01-009-0071
NSN 4140-00-001-1536
NSN 5998-00-164-7847
NSN 5930-00-913-5954
NSN 5965-00-775-6496
NSN 5855-01-066-4399
NSN 6105-00-134-0827