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 5905-00-972-8138
NSN 6620-01-277-9325
NSN 6240-01-429-9826
NSN 5925-01-412-8210
NSN 5999-00-508-7163
NSN 5915-00-101-2782
NSN 5930-01-444-4619
NSN 6685-00-273-8733
NSN 6105-01-366-0560
NSN 6220-01-371-5438
NSN 6610-00-504-2839
NSN 5999-00-346-8267