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 6110-00-826-9607
NSN 6110-00-263-6664
NSN 5925-01-417-1942
NSN 2925-01-650-3412
NSN 5910-00-561-8847
NSN 5990-00-285-1948
NSN 5915-01-381-1138
NSN 6130-01-217-8395
NSN 6685-01-196-0854
NSN 6150-01-383-4527
NSN 5855-00-149-0766
NSN 5950-01-359-5465