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 5930-01-364-9378
NSN 6220-01-089-8839
NSN 6110-01-518-9553
NSN 5950-01-374-7749
NSN 5960-00-296-4799
NSN 5905-00-067-5299
NSN 5910-00-642-6741
NSN 6150-00-205-2490
NSN 6105-01-568-9859
NSN 6130-00-822-4903
NSN 4140-00-146-9795
NSN 5905-01-253-4847