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 6610-01-184-3210
NSN 4140-01-313-3733
NSN 5965-01-067-4946
NSN 5950-00-493-7598
NSN 5910-01-476-6844
NSN 4140-01-118-8918
NSN 6320-01-399-6177
NSN 6135-01-551-0562
NSN 2925-01-270-1124
NSN 6135-01-528-6896
NSN 6110-00-207-8862
NSN 7035-01-423-5863