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 5960-01-512-0233
NSN 5965-01-446-6945
NSN 6620-01-420-1735
NSN 5975-00-489-2767
NSN 5930-01-352-5428
NSN 5965-01-119-8237
NSN 6105-00-038-0683
NSN 6645-01-252-9659
NSN 5910-01-167-6088
NSN 5985-01-193-4185
NSN 6130-01-651-9082
NSN 5920-01-134-7853