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 4140-01-263-5409
NSN 5985-01-407-8953
NSN 5910-01-329-6262
NSN 4140-01-440-8645
NSN 6110-01-254-3727
NSN 6645-01-574-6160
NSN 5935-00-116-9638
NSN 5996-00-248-7061
NSN 6320-01-504-3948
NSN 6130-01-350-0331
NSN 6645-01-574-6160
NSN 6240-00-087-6684