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 6610-01-643-6652
NSN 5960-00-172-6092
NSN 5960-01-244-2835
NSN 6685-00-735-9111
NSN 5990-01-522-6096
NSN 5920-01-100-3018
NSN 6145-00-057-2483
NSN 5915-01-409-1822
NSN 6150-01-206-4624
NSN 5910-00-342-4338
NSN 5950-01-440-1197
NSN 5965-00-226-0209