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 6145-01-326-5622
NSN 4140-00-935-5360
NSN 5965-01-084-6921
NSN 5999-01-170-3294
NSN 6105-00-113-0679
NSN 6130-01-421-4773
NSN 5996-01-139-2843
NSN 5950-00-996-8796
NSN 6150-01-051-1678
NSN 5910-01-521-2872
NSN 6130-01-600-0031
NSN 6610-00-003-7899