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 5855-01-426-5589
NSN 5895-00-747-9648
NSN 5930-00-929-3180
NSN 6240-01-578-4188
NSN 6130-01-535-1669
NSN 5965-00-208-4896
NSN 5998-00-067-3743
NSN 6240-01-531-2661
NSN 5990-00-546-8619
NSN 5925-00-224-7425
NSN 5950-01-135-6818
NSN 6645-01-437-5290