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 7035-00-052-2188
NSN 2925-01-579-1010
NSN 5855-01-502-5141
NSN 5935-00-569-6572
NSN 5920-01-252-8660
NSN 5935-01-205-0162
NSN 6135-01-612-5578
NSN 6145-00-532-6341
NSN 5905-01-384-6980
NSN 5999-01-144-9448
NSN 5930-00-879-6341
NSN 5965-00-372-2537