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 5905-01-498-2737
NSN 5855-01-100-3272
NSN 5835-01-242-9806
NSN 5965-01-262-9608
NSN 5999-01-069-3528
NSN 6650-01-311-7264
NSN 6685-00-801-0036
NSN 6685-01-440-1844
NSN 5920-01-183-6329
NSN 4140-00-894-1793
NSN 5985-00-194-1559
NSN 5895-01-288-3412