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 4140-01-334-9043
NSN 6685-01-071-6591
NSN 5985-00-375-1837
NSN 5990-01-372-6047
NSN 5945-01-284-1333
NSN 6145-00-663-6133
NSN 5990-01-335-7948
NSN 5905-00-962-0239
NSN 6110-01-435-5753
NSN 5920-01-059-2680
NSN 5835-00-572-7445
NSN 6685-01-468-6711