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 6650-00-792-8577
NSN 6150-00-214-2682
NSN 6650-01-447-4631
NSN 5930-01-483-1600
NSN 6150-01-501-6100
NSN 7035-01-202-8172
NSN 6105-00-233-7312
NSN 5910-01-232-3447
NSN 5835-01-578-3443
NSN 6150-00-994-5030
NSN 5999-01-004-7300
NSN 5998-01-438-0314