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 6610-00-999-1528
NSN 6150-00-080-1488
NSN 5965-00-557-9112
NSN 5910-01-547-0666
NSN 6620-01-591-1761
NSN 5960-00-539-7914
NSN 7035-01-448-4740
NSN 6650-01-477-9545
NSN 5990-01-143-2518
NSN 5998-00-106-4700
NSN 6145-01-651-9738
NSN 5998-01-436-4166