Surface treatment, chromium
An item specifically designed to be used with a multiscale dial or sector of a measuring device to limit, open or close the observation of the scale (s), or dial (s) desired. it is usually flat and contains one or more observation slots. It may be hinged or otherwise moved by rotary or straight-line motion to expose the scale or scales required for observation.
NSN 6320-01-495-0512
NSN 5990-01-364-8405
NSN 5920-01-215-4741
NSN 5998-01-420-5842
NSN 6145-01-313-8678
NSN 6610-01-011-0296
NSN 6685-01-525-7586
NSN 5960-01-495-0859
NSN 6145-01-464-3380
NSN 6150-01-125-4168
NSN 5975-01-134-9680
NSN 5915-01-029-4920