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 5935-00-293-1863
NSN 6110-00-349-6848
NSN 6130-00-922-3336
NSN 6620-00-176-5722
NSN 5925-01-203-9991
NSN 5999-00-211-9736
NSN 6135-00-050-7189
NSN 6130-01-461-2039
NSN 5920-00-699-1927
NSN 5990-01-326-2677
NSN 5930-00-151-9286
NSN 6240-01-433-3648