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 5950-01-227-9932
NSN 5996-01-136-3241
NSN 6650-01-394-6894
NSN 6620-01-417-3314
NSN 5990-00-351-5479
NSN 6135-00-866-2311
NSN 6135-01-183-8993
NSN 4140-00-054-6467
NSN 6610-00-569-2992
NSN 6320-01-397-9995
NSN 7035-01-633-9537
NSN 5935-01-025-1624