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 5950-01-236-4090
NSN 6130-01-254-3934
NSN 5920-00-056-6620
NSN 5925-01-417-9203
NSN 5835-00-092-1136
NSN 5925-00-944-3848
NSN 6240-01-115-8487
NSN 6320-00-139-1090
NSN 6620-00-229-2728
NSN 5975-00-851-6085
NSN 6135-00-194-9354
NSN 6130-01-340-7846