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		                             National Stock Number: 5210-00-221-1972
  Federal Supply Class: 5210
  National Item Identification Number: 002211972
  Description: CALIPER,MICROMETER,OUTSIDE
  Detail: A PRECISION MEASURING INSTRUMENT WITH A MICROMETER SCREW ATTACHMENT USED FOR MAKING EXACT EXTERNAL LINEAR MEASUREMENTS OF THICKNESS, OUTSIDE DIAMETERS, OR DISTANCES OVER TWO PARALLEL PLANES. IT CONSISTS OF A U-FRAME AND A MICROMETER, THE SPINDLE OF WHICH IS ALIGNED WITH AN OPPOSITE ANVIL. IT MAY INCLDUE A DIAL INDICATOR, DIGITAL DISPLAY, AND/OR A PUSH-BUTTON MECHANISM WHICH ACTIVATES A RETRACTABLE ANVIL TO ASSURE UNIFORMITY OF CONTACT PRESSURE, AND PERMITS USE AS A VISUAL COMPARATOR. GRADUATIONS MAY BE IN INCHES AND/OR MILLIMETERS.
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  Manufacturer Information:
 | 228RL | 57163 | L.S. STARRETT COMPANY (THE) |   
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  Techincal Specification:
 | GAGING RANGE | +0.000 TO 1.000 INCHES |  | GRADUATION UNIT | THOUSANDTHS OF AN INCH |  | LOCKNUT | INCLUDED |  | PUSHBUTTON PRESSURE CONTROL | NOT INCLUDED |  | RATCHET STOP | INCLUDED |   
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