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 6110-01-132-9760
NSN 6610-01-426-5090
NSN 5996-01-619-6176
NSN 5935-01-550-3041
NSN 5835-01-534-3172
NSN 6145-00-413-4578
NSN 5925-00-345-7746
NSN 6645-00-531-4820
NSN 5998-01-314-5885
NSN 6240-00-372-4841
NSN 5960-00-146-4632
NSN 5945-01-463-7332