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 5930-01-612-1015
NSN 7035-00-052-2188
NSN 5998-01-610-8543
NSN 5950-00-555-0605
NSN 5945-01-481-1163
NSN 5990-00-518-0684
NSN 6240-00-702-6955
NSN 5975-00-275-7985
NSN 5910-00-288-5979
NSN 6620-00-736-5342
NSN 6150-01-252-8244
NSN 5985-01-238-9152