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 5990-01-188-7309
NSN 5996-01-396-7705
NSN 6650-01-277-8273
NSN 5985-01-569-6361
NSN 6645-00-503-1379
NSN 6105-01-445-6574
NSN 5920-01-500-2150
NSN 5935-01-268-4836
NSN 7035-01-199-6915
NSN 5998-01-575-0804
NSN 6320-01-088-1109
NSN 2925-01-408-9485