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 6135-01-518-4507
NSN 5950-00-768-2860
NSN 6650-00-256-9059
NSN 5915-01-584-2404
NSN 5975-01-229-0635
NSN 5996-00-281-4500
NSN 4140-00-274-9638
NSN 5915-00-557-6735
NSN 5975-01-446-5260
NSN 6105-01-444-7540
NSN 5925-00-888-5444
NSN 5998-01-200-5556