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 2925-01-098-9549
NSN 5905-01-203-6805
NSN 6320-00-394-8458
NSN 4140-01-020-4224
NSN 5999-00-619-4566
NSN 5935-00-145-7534
NSN 6645-01-438-3069
NSN 5925-00-070-5011
NSN 5930-00-636-8888
NSN 5985-00-244-0842
NSN 6135-00-733-9665
NSN 5975-00-761-5602