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 5945-01-493-8688
NSN 6620-01-597-0512
NSN 6685-01-594-6298
NSN 5996-01-279-4273
NSN 5915-00-879-1069
NSN 5935-01-147-3910
NSN 5945-01-024-2124
NSN 5835-00-406-5824
NSN 5985-01-550-4732
NSN 6110-00-614-9218
NSN 6135-01-278-9717
NSN 5835-01-362-0305