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 6685-01-072-7722
NSN 5985-01-399-1726
NSN 5935-01-634-0668
NSN 6650-00-170-5095
NSN 2925-01-338-7126
NSN 6220-00-444-6051
NSN 6610-00-261-8159
NSN 5915-00-058-9207
NSN 5996-01-085-6246
NSN 6110-00-170-6520
NSN 6135-01-180-9611
NSN 6110-00-872-4027