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 6240-01-199-0367
NSN 5998-00-178-1040
NSN 5930-01-428-9994
NSN 5985-01-448-9396
NSN 5990-01-004-6343
NSN 5920-01-448-6914
NSN 5905-00-876-4469
NSN 5990-01-162-9220
NSN 6220-00-942-2678
NSN 4140-00-633-1435
NSN 5915-00-437-9703
NSN 5925-00-369-1596