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 6620-01-141-1694
NSN 6610-00-428-3678
NSN 5950-01-293-4123
NSN 5996-00-446-3784
NSN 5999-00-618-1040
NSN 5910-01-344-5556
NSN 6135-00-519-1325
NSN 5996-00-734-5364
NSN 6145-01-401-3713
NSN 5945-01-043-4939
NSN 5855-01-604-9997
NSN 5935-01-035-6585