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 6610-01-495-2990
NSN 6320-00-116-3658
NSN 6105-00-472-3808
NSN 5910-01-498-9352
NSN 6610-01-633-8931
NSN 6220-01-409-1585
NSN 5996-00-804-2698
NSN 5895-01-148-8852
NSN 5835-00-998-5757
NSN 6650-01-029-5414
NSN 5925-01-523-4838
NSN 6110-01-306-9235