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 5985-00-158-5316
NSN 6130-01-473-0882
NSN 5998-00-320-0782
NSN 4140-00-011-2988
NSN 5855-01-497-8834
NSN 6645-01-125-3935
NSN 5945-01-621-3298
NSN 6110-01-160-1857
NSN 5950-01-039-5242
NSN 6620-01-152-9453
NSN 6685-00-188-1991
NSN 6320-00-242-3300