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 5945-01-645-3742
NSN 5855-01-400-1590
NSN 6150-00-629-4342
NSN 5920-00-647-1065
NSN 7035-01-177-2807
NSN 5990-01-307-4489
NSN 5855-01-060-2820
NSN 5998-00-465-2227
NSN 5960-01-567-1096
NSN 5950-00-728-2348
NSN 5905-01-604-9810
NSN 5915-01-441-1820