Magnesium fluoride coated to reducereflection
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 6220-00-111-0921
NSN 5999-01-605-4053
NSN 5915-01-540-4491
NSN 6110-00-921-1024
NSN 5895-00-904-1055
NSN 5950-01-319-2406
NSN 5975-01-441-2181
NSN 5985-01-446-6868
NSN 5930-01-458-6090
NSN 6610-01-033-7957
NSN 5996-01-522-1695
NSN 6645-01-287-5239