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 6685-01-381-5512
NSN 6220-01-646-6172
NSN 6650-00-539-7298
NSN 5975-00-237-4297
NSN 5910-00-707-4900
NSN 6105-00-373-3780
NSN 5935-00-055-6503
NSN 5975-01-511-2026
NSN 5945-01-154-8008
NSN 5965-01-463-2815
NSN 5975-01-558-1008
NSN 6320-01-473-9024