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 6220-01-444-4261
NSN 6220-01-350-9370
NSN 6620-01-367-0844
NSN 6105-00-781-5047
NSN 5960-00-938-1193
NSN 5925-00-201-7431
NSN 6320-01-239-5700
NSN 5950-00-528-4423
NSN 5999-01-208-2358
NSN 6220-01-572-3851
NSN 5915-01-044-8916
NSN 5935-01-224-9502