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 6130-01-643-4598
NSN 5835-00-269-2232
NSN 5925-01-344-0518
NSN 6620-00-472-5146
NSN 5910-00-388-6737
NSN 5915-00-539-0821
NSN 7035-01-271-1643
NSN 6135-01-512-8740
NSN 5905-01-128-3494
NSN 5998-00-097-9578
NSN 5975-00-189-0093
NSN 5895-01-537-4366