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 5935-00-722-3739
NSN 6240-01-198-1966
NSN 5935-01-349-3623
NSN 5975-01-219-1346
NSN 5965-01-435-6644
NSN 7035-01-608-9192
NSN 6650-01-643-5908
NSN 5855-01-129-1327
NSN 6110-00-473-1874
NSN 5996-01-418-8485
NSN 5998-01-397-3334
NSN 6240-00-433-1070