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 5935-01-373-5663
NSN 7035-01-283-2536
NSN 5999-00-186-9314
NSN 6150-01-304-5678
NSN 5895-00-590-8276
NSN 6620-01-132-7281
NSN 5960-01-142-8170
NSN 5960-01-278-9394
NSN 6645-01-578-6815
NSN 5960-00-923-5047
NSN 6320-01-340-4112
NSN 5945-01-534-5781