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 6645-00-148-8081
NSN 5950-01-225-9985
NSN 5960-00-564-4792
NSN 5905-01-323-5836
NSN 5935-00-399-3420
NSN 5915-00-168-4549
NSN 5920-01-088-7958
NSN 6610-00-788-0134
NSN 5975-01-353-3194
NSN 5915-00-258-4398
NSN 2925-01-612-0405
NSN 5905-01-360-1441