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 6650-00-364-7866
NSN 5950-01-197-2926
NSN 6220-01-462-0236
NSN 5935-01-632-9072
NSN 5990-00-226-7894
NSN 6240-01-416-6282
NSN 6650-01-246-3265
NSN 6110-01-020-8153
NSN 6145-00-301-9124
NSN 5975-01-380-0634
NSN 5990-01-393-4808
NSN 5925-00-728-2290