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 5855-00-494-9581
NSN 5999-01-462-6133
NSN 6145-01-193-1983
NSN 6685-00-754-7495
NSN 5965-01-303-6105
NSN 5920-01-241-0566
NSN 5990-01-160-6978
NSN 6610-00-005-4452
NSN 5950-01-058-3767
NSN 6620-01-556-1695
NSN 5930-01-399-3748
NSN 5915-00-965-0535