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 6130-01-269-0258
NSN 6650-01-174-5788
NSN 5999-01-452-2150
NSN 2925-01-633-4048
NSN 5960-01-584-9452
NSN 5985-01-645-4641
NSN 6220-01-202-0195
NSN 4140-01-177-0142
NSN 5905-01-065-4059
NSN 5915-01-550-6724
NSN 5905-00-649-0425
NSN 5835-00-707-6266