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 5996-00-299-1609
NSN 7035-01-289-9431
NSN 5960-00-812-9980
NSN 6645-01-523-3243
NSN 6220-01-600-6789
NSN 5950-01-517-5112
NSN 5905-00-628-0694
NSN 5950-01-634-0677
NSN 4140-00-127-5311
NSN 6610-01-151-1540
NSN 6130-01-641-9514
NSN 5945-01-202-6177