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 6220-00-317-9101
NSN 6135-00-078-9931
NSN 6645-01-539-5922
NSN 6645-00-411-3733
NSN 5998-01-348-8905
NSN 6130-01-107-2617
NSN 5945-00-684-8160
NSN 5910-01-655-0360
NSN 6110-00-248-7475
NSN 6240-01-396-5639
NSN 5945-01-556-0768
NSN 6240-01-394-8112