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 2925-01-094-4771
NSN 6240-00-144-4693
NSN 5975-00-345-8055
NSN 5965-01-217-0310
NSN 6685-01-650-4260
NSN 6105-01-047-9117
NSN 5920-01-567-4634
NSN 6620-00-972-5899
NSN 5930-01-625-5932
NSN 5999-01-523-7446
NSN 6150-01-577-2162
NSN 7035-01-413-6697