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 6620-01-633-8443
NSN 6620-01-206-5748
NSN 5925-01-233-9297
NSN 6645-00-020-2787
NSN 6105-01-419-0106
NSN 5925-00-171-0307
NSN 5835-01-193-6192
NSN 6220-00-157-5009
NSN 5905-01-634-0595
NSN 5975-01-269-0283
NSN 5855-01-524-9353
NSN 6240-00-053-7055