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 5925-01-390-8256
NSN 6650-01-011-3472
NSN 6220-01-025-6140
NSN 5960-00-163-3324
NSN 6105-00-905-3135
NSN 5975-00-690-9061
NSN 5910-01-219-2972
NSN 4140-01-467-1213
NSN 5915-01-381-6547
NSN 2925-01-290-8208
NSN 7035-01-211-5636
NSN 7035-01-383-6549