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 6685-01-367-3675
NSN 5945-01-436-8343
NSN 5935-01-178-8834
NSN 6645-00-863-5672
NSN 6685-00-101-9990
NSN 5905-01-076-8442
NSN 5998-01-522-9262
NSN 5915-01-177-0320
NSN 5895-00-147-4101
NSN 5920-01-290-3771
NSN 6150-01-424-8062
NSN 6645-00-799-9459