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 5998-01-589-9219
NSN 6145-00-935-5242
NSN 6650-00-585-2786
NSN 5975-00-276-7559
NSN 6105-01-571-7371
NSN 6240-00-908-0377
NSN 5985-01-461-3531
NSN 7035-01-165-6820
NSN 2925-00-453-4100
NSN 5945-01-273-7318
NSN 6620-00-164-1493
NSN 2925-01-615-2379