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 5998-01-234-7181
NSN 5905-01-643-7284
NSN 5930-00-883-9729
NSN 6320-01-325-6607
NSN 5920-01-361-8835
NSN 6130-01-448-2987
NSN 6150-01-364-7839
NSN 5835-00-995-7539
NSN 5910-01-231-9628
NSN 5996-00-733-5690
NSN 4140-01-456-3925
NSN 5925-01-342-0842