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 6610-01-461-8180
NSN 6620-01-127-0049
NSN 6145-00-199-8066
NSN 5996-00-499-8036
NSN 7035-01-443-3052
NSN 4140-01-495-6979
NSN 5996-01-248-9699
NSN 5945-01-114-5055
NSN 5996-01-229-5468
NSN 5920-00-594-3124
NSN 5998-01-365-5677
NSN 6135-00-906-0984