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 5985-01-591-6698
NSN 5930-00-996-2775
NSN 6685-00-930-2771
NSN 5930-01-284-6278
NSN 6150-01-511-4044
NSN 5925-01-632-3833
NSN 6135-01-348-8264
NSN 6135-00-062-5080
NSN 6105-01-163-7655
NSN 5935-00-132-1364
NSN 5998-01-654-3975
NSN 5855-01-415-3987