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 7035-01-146-7096
NSN 5855-00-451-6155
NSN 5990-01-322-9781
NSN 5930-00-778-2145
NSN 6220-01-370-0831
NSN 5960-00-498-9034
NSN 5975-00-317-4783
NSN 5990-00-170-9553
NSN 5905-01-463-8665
NSN 4140-01-406-3626
NSN 5975-00-461-3097
NSN 5930-01-388-2146