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 6685-01-398-6536
NSN 5985-01-329-3303
NSN 5965-01-626-2852
NSN 5990-01-432-4984
NSN 6620-00-391-0374
NSN 4140-01-551-5840
NSN 6220-00-715-8984
NSN 6620-01-649-7511
NSN 6645-00-150-6526
NSN 5835-01-162-3042
NSN 5935-01-655-5093
NSN 6685-01-246-1725