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 5998-00-161-3913
NSN 5855-01-364-9810
NSN 5990-01-437-4876
NSN 5950-01-233-2025
NSN 6145-01-226-6792
NSN 5965-01-624-4840
NSN 6240-00-623-4784
NSN 5905-00-824-8811
NSN 5975-01-465-6886
NSN 6650-01-296-0883
NSN 5905-01-437-9110
NSN 5855-01-400-1590