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 5920-01-146-4503
NSN 5915-01-342-1678
NSN 5945-01-222-0847
NSN 5910-01-432-2214
NSN 5960-00-804-5405
NSN 5925-01-139-3866
NSN 6130-01-502-6991
NSN 6130-01-616-7242
NSN 6145-01-028-3803
NSN 5910-01-511-0224
NSN 6620-00-167-3825
NSN 6150-00-657-4759