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 5975-00-355-6040
NSN 5915-00-434-3381
NSN 6145-01-091-4652
NSN 5895-01-135-9853
NSN 6320-01-364-1840
NSN 6610-00-913-7069
NSN 5999-01-547-0337
NSN 6150-01-596-3619
NSN 4140-01-428-9426
NSN 5975-01-461-3291
NSN 6320-01-119-3935
NSN 6240-01-123-8822