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 6610-01-583-4539
NSN 5915-00-829-2508
NSN 6145-00-097-9437
NSN 6135-01-106-7740
NSN 6320-00-456-2092
NSN 5945-01-634-0588
NSN 5895-00-756-6862
NSN 5996-01-077-8077
NSN 6150-00-273-6963
NSN 5905-01-146-3253
NSN 5985-01-586-1861
NSN 6610-01-304-3226