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 6650-01-632-3501
NSN 6135-00-100-0485
NSN 5895-01-086-8402
NSN 5960-01-567-1096
NSN 5945-01-392-2931
NSN 6150-01-601-3268
NSN 6145-00-066-0177
NSN 5905-00-466-3298
NSN 6130-00-052-5983
NSN 5950-01-434-4640
NSN 5998-00-286-3590
NSN 5920-01-435-6052