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 5960-01-408-6290
NSN 5915-01-278-2463
NSN 6145-01-536-9347
NSN 6150-00-131-2869
NSN 5945-00-202-5133
NSN 7035-00-731-8729
NSN 5930-01-646-3004
NSN 6645-00-038-7737
NSN 5999-00-766-4647
NSN 5895-00-437-4002
NSN 6320-00-106-7259
NSN 6240-01-545-3608