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 6685-01-183-2890
NSN 6150-00-782-7687
NSN 6650-01-408-5089
NSN 6130-01-481-4423
NSN 6130-00-565-7238
NSN 4140-01-412-3933
NSN 5895-01-246-0704
NSN 6645-01-376-8022
NSN 6135-01-226-4071
NSN 5945-01-388-5561
NSN 5945-01-341-1939
NSN 5985-01-658-7371