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 5996-00-237-5146
NSN 6130-01-206-3740
NSN 6650-00-205-6282
NSN 5895-01-515-4930
NSN 5999-00-848-2270
NSN 5895-00-689-2990
NSN 5945-00-995-0926
NSN 4140-01-322-8491
NSN 4140-01-321-7853
NSN 6645-00-049-6713
NSN 5920-01-202-7166
NSN 6320-00-646-3311