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 5990-01-579-2711
NSN 5985-01-413-5438
NSN 6145-01-209-0842
NSN 6240-01-194-2206
NSN 6145-01-487-6739
NSN 5975-01-106-3595
NSN 5920-00-569-6435
NSN 7035-00-252-7467
NSN 5945-01-160-7894
NSN 5910-00-477-9437
NSN 5930-00-437-8393
NSN 6220-00-839-2589