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 6620-01-415-5803
NSN 6110-00-271-9928
NSN 5915-01-344-9692
NSN 5925-01-256-8511
NSN 5950-00-392-6733
NSN 6240-01-169-6488
NSN 5965-00-170-8676
NSN 5855-01-481-0819
NSN 5920-01-252-8660
NSN 6145-00-596-8447
NSN 5990-01-201-4852
NSN 5998-01-425-8863