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 5930-01-295-3392
NSN 6645-01-536-7933
NSN 5895-00-010-9979
NSN 6240-01-139-3377
NSN 5915-01-156-1160
NSN 6135-01-159-9705
NSN 5945-01-423-9086
NSN 5965-01-564-3579
NSN 6650-01-090-2059
NSN 5930-01-317-2943
NSN 6110-01-082-8386
NSN 6135-00-377-9165