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 5998-01-557-2003
NSN 6110-01-217-2331
NSN 6145-00-343-5967
NSN 5975-00-684-8188
NSN 5975-01-554-1658
NSN 5965-01-462-1800
NSN 5945-01-548-5811
NSN 5945-01-482-6237
NSN 5985-00-545-7191
NSN 6240-01-425-1939
NSN 5915-01-027-1407
NSN 5930-00-419-3987