Friction thimble
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.
Classification: Micrometers and calipers
NSN 5915-01-471-0525
NSN 5998-01-634-0604
NSN 6150-01-509-0541
NSN 6130-01-459-8215
NSN 5950-00-548-4927
NSN 6620-01-147-5615
NSN 5895-00-853-7206
NSN 7035-01-173-1513
NSN 5985-01-064-3170
NSN 6685-01-227-6785
NSN 7035-00-941-4949
NSN 6220-00-176-0273