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 5925-01-539-4052
NSN 6645-01-654-5293
NSN 6110-01-395-3421
NSN 5835-00-419-6576
NSN 6105-01-628-9110
NSN 5920-00-585-0104
NSN 6610-00-597-3095
NSN 5935-01-137-3974
NSN 5855-01-158-2709
NSN 5915-01-044-4480
NSN 6150-00-456-4526
NSN 6620-00-379-2856