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 6610-01-414-1755
NSN 5835-01-377-8972
NSN 6645-00-241-3280
NSN 4140-01-491-6516
NSN 5965-00-356-3838
NSN 5925-01-387-9630
NSN 4140-01-379-7615
NSN 5996-00-446-3784
NSN 6220-00-004-6394
NSN 5935-01-339-4244
NSN 6135-01-601-8416
NSN 5935-00-435-8697