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 6240-00-548-3992
NSN 5930-00-072-8387
NSN 6620-01-348-1104
NSN 6685-01-564-3516
NSN 6145-01-371-2916
NSN 6110-01-590-4473
NSN 5915-00-462-2878
NSN 6610-01-527-8006
NSN 5935-00-435-8697
NSN 4140-01-428-9426
NSN 5999-01-497-6123
NSN 7035-01-310-2587