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 6240-00-297-3919
NSN 6320-01-434-6861
NSN 7035-01-088-6415
NSN 5920-00-740-3121
NSN 6620-01-500-6184
NSN 6145-01-551-9414
NSN 5855-01-364-4478
NSN 5895-01-508-7507
NSN 7035-01-564-0604
NSN 5996-01-396-0655
NSN 5945-00-189-8763
NSN 5945-00-443-4687