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 5999-01-068-2591
NSN 5910-01-283-5887
NSN 6610-00-236-7175
NSN 6620-01-168-8450
NSN 5945-00-558-9155
NSN 5935-00-889-9952
NSN 5835-01-076-4091
NSN 6620-00-620-7360
NSN 5855-01-398-9548
NSN 5985-01-128-6419
NSN 5925-00-511-9693
NSN 6620-01-495-7446