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 5985-01-161-4800
NSN 5985-00-165-3606
NSN 5998-00-088-2038
NSN 6320-01-211-6578
NSN 5930-01-567-6066
NSN 6145-00-494-2317
NSN 5945-01-595-6285
NSN 4140-01-142-4623
NSN 5905-01-592-2456
NSN 4140-01-345-7808
NSN 5985-01-305-5973
NSN 6320-01-512-2031