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 6145-00-060-2818
NSN 6135-01-435-6503
NSN 5975-00-596-4716
NSN 6130-01-181-4535
NSN 5985-01-373-2678
NSN 5998-01-398-0673
NSN 4140-00-836-4794
NSN 5930-01-252-4612
NSN 4140-01-475-4001
NSN 5965-01-502-7006
NSN 5996-00-961-8076
NSN 6220-01-627-9782