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 5930-01-276-3653
NSN 5935-01-491-6637
NSN 5975-01-571-8533
NSN 6610-00-946-6146
NSN 2925-01-032-3814
NSN 6645-01-297-3368
NSN 6220-00-775-7498
NSN 5998-00-783-3415
NSN 5999-01-026-2434
NSN 6150-01-417-2643
NSN 5935-01-312-3977
NSN 5915-01-364-1093