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 5998-01-604-8945
NSN 5930-00-321-5373
NSN 6240-01-480-8996
NSN 2925-00-001-4604
NSN 4140-01-469-6140
NSN 5985-01-004-9716
NSN 6650-01-056-5418
NSN 5975-01-256-9813
NSN 5990-01-123-4226
NSN 5945-01-347-5572
NSN 6685-01-106-3210
NSN 6110-00-686-4685