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 5925-01-177-6334
NSN 6145-01-504-0420
NSN 6145-00-409-6844
NSN 5835-01-447-2544
NSN 6150-00-412-1908
NSN 6685-00-108-6374
NSN 5930-00-418-4417
NSN 5915-01-521-6706
NSN 5915-01-629-9166
NSN 5920-00-142-7460
NSN 5985-01-209-5964
NSN 5960-00-405-1284