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 6610-01-565-7344
NSN 5925-01-555-7565
NSN 5985-01-096-2244
NSN 5925-00-315-2238
NSN 5930-01-201-2313
NSN 4140-01-462-1336
NSN 4140-00-580-8508
NSN 5965-00-777-7037
NSN 6220-01-424-1548
NSN 5950-01-113-4774
NSN 5895-00-169-6079
NSN 6320-00-405-2348