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 5945-01-136-7640
NSN 6240-00-455-7640
NSN 5920-00-495-6663
NSN 5960-00-688-3940
NSN 5950-01-382-7605
NSN 6650-00-913-8405
NSN 5905-01-455-9556
NSN 6645-01-127-0039
NSN 5960-00-082-4298
NSN 5975-01-650-1847
NSN 6150-01-454-6270
NSN 7035-01-136-7404