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 5925-01-474-5893
NSN 5950-01-243-3460
NSN 6650-01-302-7684
NSN 5935-01-567-2876
NSN 5945-00-520-8193
NSN 5945-01-480-9714
NSN 5930-00-584-4563
NSN 5935-00-212-3632
NSN 5905-01-625-6165
NSN 5895-01-121-8716
NSN 2925-00-542-8285
NSN 6650-01-573-4044