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 5999-00-880-5760
NSN 6610-00-386-4745
NSN 5945-01-425-1749
NSN 6650-01-399-0628
NSN 6610-01-492-0055
NSN 2925-01-442-0878
NSN 5965-00-715-6159
NSN 5920-01-355-9264
NSN 6240-00-474-0661
NSN 5999-00-290-5898
NSN 6220-00-141-6150
NSN 4140-01-525-8158