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 6620-01-519-7234
NSN 5965-00-465-9566
NSN 6145-01-507-3868
NSN 2925-01-197-7864
NSN 5895-01-181-5471
NSN 6620-00-342-0751
NSN 5965-00-501-4867
NSN 5998-01-259-4680
NSN 5996-00-707-6228
NSN 5905-00-901-4706
NSN 5999-01-314-5344
NSN 6130-01-307-7312