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 5998-01-370-6321
NSN 6610-01-551-0774
NSN 6105-01-375-2810
NSN 5998-01-017-2782
NSN 5925-01-461-1628
NSN 5835-00-980-0468
NSN 6240-00-246-5060
NSN 5965-01-633-8849
NSN 5998-01-592-7109
NSN 5965-01-215-0993
NSN 5935-01-417-7151
NSN 4140-00-432-5593