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 6110-01-531-9621
NSN 6685-01-158-9427
NSN 5950-00-041-6554
NSN 4140-01-370-8758
NSN 7035-01-472-1999
NSN 6135-01-326-2536
NSN 6110-00-427-4454
NSN 5960-00-279-3536
NSN 5895-00-194-4875
NSN 6145-00-116-5597
NSN 6130-01-566-0474
NSN 2925-00-960-4737