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 5925-01-373-0518
NSN 5935-01-608-4386
NSN 5855-01-400-1590
NSN 5855-01-149-4110
NSN 6110-00-803-4472
NSN 5910-01-658-8973
NSN 6610-00-820-4743
NSN 5965-00-859-8135
NSN 5999-01-357-9678
NSN 4140-00-141-0132
NSN 5935-01-302-9802
NSN 5998-01-252-3529