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 5855-01-643-0050
NSN 5945-01-443-9114
NSN 5915-01-099-1018
NSN 6145-01-542-9141
NSN 5965-01-478-7329
NSN 5998-01-215-6398
NSN 5945-00-964-6354
NSN 5950-00-352-7261
NSN 5915-01-535-0918
NSN 5965-00-560-5804
NSN 6105-01-122-3835
NSN 5925-01-225-1322