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 5930-00-106-2884
NSN 5985-01-075-5664
NSN 6685-01-622-4189
NSN 6220-00-565-3888
NSN 5925-00-549-2433
NSN 5935-01-065-5526
NSN 5855-00-631-4565
NSN 5999-01-444-3944
NSN 5905-00-905-1170
NSN 6320-01-207-0636
NSN 5998-01-182-7320
NSN 6320-01-176-8367