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 5996-01-499-1900
NSN 5965-00-170-5254
NSN 5985-00-028-4142
NSN 6240-01-415-5149
NSN 5975-00-116-3874
NSN 5915-01-058-5182
NSN 5985-01-426-8726
NSN 5920-00-216-4759
NSN 5950-01-276-7180
NSN 5935-00-977-0644
NSN 4140-00-007-5726
NSN 5935-00-282-7967