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 6685-01-135-2589
NSN 6145-01-654-1666
NSN 6130-01-448-9354
NSN 6105-00-979-4185
NSN 5925-01-395-1019
NSN 7035-00-206-6123
NSN 6220-01-364-3000
NSN 6105-01-453-6510
NSN 7035-01-284-3535
NSN 4140-01-421-9162
NSN 6130-01-348-1298
NSN 5990-01-648-9721