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 5910-01-545-0280
NSN 5935-01-286-0687
NSN 5975-01-142-6860
NSN 5915-01-255-1999
NSN 6650-00-734-3985
NSN 6110-01-495-9806
NSN 6610-01-534-8433
NSN 6110-01-289-4689
NSN 6610-01-193-2169
NSN 4140-01-484-4707
NSN 6130-00-085-6309
NSN 4140-00-331-0685