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 5998-01-401-5396
NSN 6220-01-161-2836
NSN 5945-00-928-4551
NSN 5895-00-539-8322
NSN 6685-00-133-2288
NSN 5998-01-481-5334
NSN 5930-00-685-8404
NSN 5835-00-228-9082
NSN 5975-01-589-4340
NSN 5975-01-295-9785
NSN 5985-01-050-0604
NSN 5998-00-431-7601