Heat treated
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 6220-01-415-0926
NSN 5999-01-439-9559
NSN 5998-01-041-1670
NSN 5985-01-615-7342
NSN 5998-01-440-9328
NSN 6650-01-642-7911
NSN 5895-00-409-2815
NSN 6620-01-146-4680
NSN 5915-00-032-6370
NSN 5835-01-124-6288
NSN 6610-01-633-8931
NSN 6135-01-243-5797