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 6320-00-468-8421
NSN 6130-01-400-6123
NSN 5925-01-314-5514
NSN 5965-01-519-1214
NSN 6135-01-521-0378
NSN 6145-01-626-1989
NSN 6110-01-285-3902
NSN 6145-00-356-1923
NSN 6130-01-168-9768
NSN 5935-01-580-6502
NSN 5930-01-213-7565
NSN 5945-00-157-5404