Magnesium fluoride anti-reflection coating both surfaces per mil-c-675c; fragility factor: very delicate
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 5905-01-096-7895
NSN 5855-01-213-9076
NSN 5950-00-553-7964
NSN 6610-01-327-3187
NSN 5950-00-478-8027
NSN 5935-00-541-6481
NSN 5960-01-162-6166
NSN 5990-01-343-6407
NSN 6610-01-299-7171
NSN 6685-01-649-1504
NSN 6650-00-442-0567
NSN 5915-01-620-9696