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 6135-00-422-3967
NSN 5930-01-521-4402
NSN 7035-00-173-2281
NSN 5999-00-609-7413
NSN 6150-00-932-3669
NSN 6130-01-261-3053
NSN 5935-00-047-4079
NSN 6685-01-380-2998
NSN 5960-01-142-1995
NSN 5835-01-497-5029
NSN 5835-01-576-9013
NSN 6220-01-497-7229