A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 5915-01-114-2942
NSN 5998-01-038-3398
NSN 6110-01-282-6574
NSN 5950-01-338-8072
NSN 6110-00-753-7677
NSN 6685-01-274-6320
NSN 5998-01-100-1957
NSN 7035-01-413-2018
NSN 5998-01-370-3995
NSN 5835-00-170-5238
NSN 6220-01-348-5510
NSN 5920-01-428-6110