Heat treated
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 5965-01-137-3769
NSN 5905-01-415-0869
NSN 7035-01-423-8343
NSN 5950-00-647-1160
NSN 5998-00-547-2642
NSN 5985-00-926-2593
NSN 5950-01-116-3342
NSN 6220-01-354-3792
NSN 2925-00-502-3768
NSN 5920-00-467-1933
NSN 5930-00-898-0733
NSN 6135-01-445-6589