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 6145-01-419-6050
NSN 6650-01-507-9636
NSN 4140-01-398-8961
NSN 5945-01-634-0588
NSN 5935-01-485-2457
NSN 2925-01-254-8925
NSN 5998-00-518-5118
NSN 6320-01-442-3428
NSN 5960-01-444-2205
NSN 6320-00-456-2092
NSN 6130-01-095-2981
NSN 6645-01-135-4713