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 6150-01-435-8822
NSN 6650-01-331-5243
NSN 4140-01-381-3221
NSN 5935-01-356-4854
NSN 5999-00-994-4131
NSN 5998-01-428-9545
NSN 5950-01-003-0886
NSN 5999-00-047-4614
NSN 5835-00-387-4759
NSN 5910-01-425-3281
NSN 6685-01-536-6874
NSN 5975-01-515-9897