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 6150-01-345-5626
NSN 5905-00-270-6653
NSN 6685-00-709-0576
NSN 6685-01-020-7235
NSN 6150-00-629-4342
NSN 2925-01-522-1134
NSN 5930-01-237-3434
NSN 5990-01-063-2532
NSN 5985-00-226-6846
NSN 5855-01-056-9607
NSN 7035-01-256-9598
NSN 5910-01-163-8916