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 6645-01-608-6471
NSN 5975-01-523-6306
NSN 5998-00-659-9533
NSN 5998-01-168-8124
NSN 5910-00-371-6933
NSN 5920-01-420-5768
NSN 6145-01-310-0731
NSN 5945-00-966-7717
NSN 2925-01-543-0073
NSN 5925-01-492-4782
NSN 5998-01-443-1225
NSN 5905-00-453-2596