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 6240-01-438-1157
NSN 7035-01-443-3052
NSN 5985-01-438-3086
NSN 6220-01-196-0116
NSN 5895-01-030-3307
NSN 5905-00-974-1774
NSN 6110-01-314-4507
NSN 5895-01-594-8740
NSN 5935-00-547-2708
NSN 6650-01-451-1372
NSN 6645-01-487-2052
NSN 6145-01-182-9200