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 6110-01-370-6679
NSN 5855-01-199-2046
NSN 6240-01-275-4535
NSN 6610-00-544-8348
NSN 5855-01-130-1501
NSN 6620-01-181-1757
NSN 6220-01-499-4748
NSN 7035-01-403-2841
NSN 4140-00-211-5970
NSN 6685-01-350-1713
NSN 6650-01-378-7875
NSN 5910-00-772-2785