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 5950-00-019-8191
NSN 4140-00-431-3830
NSN 6145-01-534-8818
NSN 6610-00-323-8175
NSN 6220-01-193-4960
NSN 5945-00-203-3315
NSN 5990-00-089-4340
NSN 6645-01-299-3198
NSN 5935-01-309-2828
NSN 6610-00-227-8846
NSN 5998-00-205-2951
NSN 7035-01-023-1008