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 6685-01-043-2744
NSN 5930-01-154-7928
NSN 5999-00-180-8128
NSN 5855-00-198-3197
NSN 5945-00-482-0572
NSN 6650-01-408-0422
NSN 6240-01-326-2594
NSN 5950-01-290-3967
NSN 5985-01-328-8072
NSN 6685-01-277-7165
NSN 5998-00-072-7108
NSN 6620-01-385-6172