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 5915-01-346-1833
NSN 5965-01-564-3579
NSN 5996-00-761-6511
NSN 6130-00-736-4382
NSN 6610-01-192-2467
NSN 6150-01-301-9088
NSN 5905-00-941-7057
NSN 6610-01-272-8625
NSN 6145-01-375-5244
NSN 5998-00-759-8159
NSN 5990-01-171-3547
NSN 5855-01-175-0284