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 6320-01-578-6006
NSN 5905-00-075-2621
NSN 5999-00-480-9753
NSN 6110-01-581-1648
NSN 5985-00-799-3572
NSN 6135-00-932-3136
NSN 6650-00-583-1735
NSN 4140-00-038-4276
NSN 6650-01-237-4689
NSN 5855-01-057-7818
NSN 6320-00-977-3930
NSN 5895-01-254-8785