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 6105-01-477-0851
NSN 5935-01-418-2742
NSN 6320-00-228-5678
NSN 7035-01-348-5153
NSN 6145-01-345-1916
NSN 5945-00-294-4869
NSN 5925-01-571-8640
NSN
NSN 5950-01-152-6927
NSN 6650-00-175-1342
NSN 5950-00-184-5963
NSN 5996-00-401-3437