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 6130-01-424-7616
NSN 6240-01-120-3533
NSN 5915-00-231-2337
NSN 6150-00-776-2738
NSN 7035-01-227-2546
NSN 5910-00-150-1216
NSN 5990-01-121-1175
NSN 5975-00-888-9848
NSN 6145-00-935-5242
NSN 5950-01-522-8146
NSN 6130-00-151-5001
NSN 6620-00-444-6972