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 6645-01-607-4078
NSN 5996-00-246-2528
NSN 6135-00-416-2898
NSN 5950-01-201-4457
NSN 5930-01-020-8829
NSN 6610-01-591-1117
NSN 5950-00-989-3377
NSN 6150-00-904-3326
NSN 5975-01-226-8100
NSN 6110-01-276-7141
NSN 6645-00-359-5463
NSN 5925-00-290-4451