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 5925-01-204-6888
NSN 5990-01-407-1474
NSN 6620-01-326-4451
NSN 6610-01-322-4331
NSN 6220-01-383-1523
NSN 6130-01-306-7745
NSN 5985-00-314-5213
NSN 6105-01-483-1506
NSN 6220-01-355-3093
NSN 5960-01-142-1995
NSN 5895-01-568-3326
NSN 6610-00-083-3870