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 5945-00-290-1779
NSN 5895-01-557-5370
NSN 5945-01-027-2258
NSN 5835-01-191-3405
NSN 5905-00-753-9731
NSN 5925-01-341-6412
NSN 6135-01-255-4786
NSN 5935-01-634-0668
NSN 5895-00-637-2658
NSN 6610-00-729-6479
NSN 5855-01-295-2313
NSN 6620-01-546-4942