National Item Identification Number
National Stock Number
Federal Supply Class
An accessory for holding tools with a plain cylindrical shank such as drills, taps, or the like, by means of two or more internal selfcentering (universal) jaws. It may be attached directly to the spindle of a machine, arbor, shaft, hand mechanism, or the like without the use of centers. The jaws are simultaneously adjusted by an adjusting nut, sleeve, feed screw, or the like. The maximum rated capacity of this item is one (1) inch (25.4 mm) diameter. For universal chucks having a capacity in excess of one (1) inch (25.4 mm), see CHUCK, UNIVERSAL JAW. Excludes CHUCK, CENTERING, LATHE.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
A-A-51140 CL1 STC SZ7
NO. 2 MORSE TAPER SHANK