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 5945-01-065-3949
NSN 5895-00-225-9589
NSN 7035-01-462-1957
NSN 6110-01-170-4767
NSN 6645-00-540-8930
NSN 5999-01-165-4611
NSN 6685-01-355-2366
NSN 5910-01-352-5068
NSN 5999-00-345-1632
NSN 5935-01-502-6690
NSN 5895-00-600-2370
NSN 5920-00-826-0949