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 6620-00-936-3463
NSN 5915-00-584-3512
NSN 6240-00-272-8601
NSN 6145-01-428-9571
NSN 2925-00-720-3948
NSN 5925-01-156-8708
NSN 6150-01-140-0652
NSN 5998-01-614-2294
NSN 5975-01-445-6261
NSN 5965-01-141-6485
NSN 4140-01-286-0536
NSN 6240-01-435-6505