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 5925-01-188-7630
NSN 5945-01-366-7948
NSN 5950-01-100-1193
NSN 6650-00-654-6950
NSN 6150-00-257-5027
NSN 2925-01-157-9204
NSN 6105-01-559-1811
NSN 6610-01-304-3226
NSN 5990-01-384-2697
NSN 5935-01-183-3900
NSN 6610-01-149-9749
NSN 6320-01-583-6809