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 6685-01-010-5967
NSN 5910-01-384-2641
NSN 5855-00-832-9341
NSN 6240-00-260-0399
NSN 6610-00-486-5343
NSN 5999-01-204-7809
NSN 6320-01-607-2978
NSN 5945-01-233-3759
NSN 6150-00-194-7887
NSN 2925-01-623-6438
NSN 6220-01-136-7820
NSN 6650-00-789-8179