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 6620-01-481-1358
NSN 6645-00-772-0532
NSN 5935-00-554-4124
NSN 5910-00-659-8612
NSN 2925-01-271-2824
NSN 5855-00-466-2309
NSN 5915-01-586-6546
NSN 5835-01-531-0379
NSN 5950-01-653-0499
NSN 6685-01-407-6445
NSN 6105-00-575-9720
NSN 5930-00-401-1206