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 5960-01-042-3337
NSN 6220-01-283-6802
NSN 6650-01-332-3799
NSN 6610-00-622-3875
NSN 6645-01-099-6887
NSN 5855-00-832-9341
NSN 5905-00-591-0025
NSN 6240-00-553-8891
NSN 5925-01-047-6301
NSN 6320-00-405-2348
NSN 6145-01-513-2930
NSN 5945-00-131-2211