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 5975-00-392-2890
NSN 5996-00-170-8060
NSN 5985-01-325-4457
NSN 6650-01-052-7134
NSN 6620-00-252-6425
NSN 5905-01-165-2888
NSN 5950-01-357-5583
NSN 5945-01-631-0975
NSN 5945-00-336-9360
NSN 6145-00-081-3993
NSN 5835-01-515-6537
NSN 6320-00-149-7570