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 5950-00-341-0294
NSN 6135-00-299-6918
NSN 6150-00-578-7816
NSN 5920-01-434-5701
NSN 6105-01-364-3209
NSN 4140-01-206-4981
NSN 5855-00-466-2309
NSN 5998-01-605-6162
NSN 6105-01-571-7371
NSN 6650-01-544-5197
NSN 4140-01-660-5997
NSN 6610-01-381-0652