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 2925-01-629-9416
NSN 5975-00-830-7638
NSN 5935-01-265-2456
NSN 5990-01-544-4360
NSN 5930-00-287-0983
NSN 6645-01-083-2001
NSN 6610-01-273-2075
NSN 5895-01-173-7117
NSN 5945-01-435-4909
NSN 5985-01-607-4717
NSN 5920-01-203-3152
NSN 5975-01-458-2426