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 5985-01-356-2048
NSN 6105-00-161-1834
NSN 6130-01-463-5744
NSN 5930-01-469-7041
NSN 5915-01-039-4899
NSN 5950-01-508-4244
NSN 6650-01-203-1632
NSN 5985-00-550-8750
NSN 6105-01-356-5291
NSN 5975-00-914-5242
NSN 6620-01-534-7180
NSN 4140-01-530-5755