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 5990-01-227-0660
NSN 5950-01-101-3887
NSN 6105-01-234-1038
NSN 5999-00-781-9663
NSN 5999-01-463-2867
NSN 5935-00-603-5931
NSN 6320-01-445-8192
NSN 4140-01-400-3610
NSN 6105-00-275-0826
NSN 5950-01-502-2432
NSN 5945-00-369-8757
NSN 6320-01-376-2778