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 5985-01-087-5943
NSN 5975-01-091-8621
NSN 5855-01-580-8155
NSN 6610-01-430-5373
NSN 5998-01-303-6145
NSN 5895-01-380-0405
NSN 5990-00-807-3623
NSN 5985-01-246-7035
NSN 7035-01-484-5416
NSN 6610-01-459-7535
NSN 6610-01-302-6347
NSN 5990-01-386-5561