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 5910-00-528-9714
NSN 6645-01-421-6909
NSN 4140-00-408-9989
NSN 5925-01-391-4986
NSN 6620-00-708-2688
NSN 5960-01-200-4621
NSN 6150-01-539-3981
NSN 6130-01-116-2100
NSN 4140-00-717-6123
NSN 6645-00-755-9782
NSN 5945-01-263-1859
NSN 6145-01-435-6455