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 5950-01-331-9340
NSN 6650-01-548-1687
NSN 6220-01-658-3180
NSN 6620-01-494-6055
NSN 5895-01-251-9535
NSN 5915-01-132-4255
NSN 5835-01-307-8954
NSN 7035-01-210-0493
NSN 6685-01-508-8251
NSN 5965-00-239-3471
NSN 2925-01-068-3844
NSN 6645-01-285-4284