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 5930-01-125-9165
NSN 5996-00-283-4366
NSN 5985-01-038-4186
NSN 7035-01-074-7634
NSN 5920-00-199-9514
NSN 4140-00-225-8586
NSN 5950-01-502-6915
NSN 6240-01-077-1127
NSN 6105-00-153-0238
NSN 6145-01-226-5010
NSN 6135-01-196-7399
NSN 5935-00-991-3332