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 5945-01-060-5230
NSN 6610-01-229-3679
NSN 4140-01-003-6850
NSN 6135-00-422-3967
NSN 5990-00-333-6210
NSN 6620-01-302-0049
NSN 6645-00-795-5565
NSN 5915-01-457-9126
NSN 5950-01-288-7196
NSN 5996-01-428-6754
NSN 7035-01-372-5006
NSN 6130-00-084-9929