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 6650-01-071-9011
NSN 5985-01-226-8660
NSN 5905-00-892-1654
NSN 5960-01-443-3067
NSN 6105-00-035-8809
NSN 6650-00-454-8230
NSN 5996-01-571-1206
NSN 6240-00-755-6904
NSN 6150-01-656-2894
NSN 5985-00-139-6026
NSN 5998-01-105-0391
NSN 6620-01-594-9215