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 5999-01-437-3611
NSN 5999-01-478-5619
NSN 6645-01-182-4896
NSN 5905-00-539-5233
NSN 6240-01-391-0399
NSN 5895-01-176-5428
NSN 7035-01-091-7481
NSN 5998-01-339-7181
NSN 2925-01-470-5534
NSN 4140-01-449-2903
NSN 6135-00-735-8530
NSN 5925-00-715-7831