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 6650-01-027-1181
NSN 5915-01-429-8312
NSN 5950-01-346-8151
NSN 6620-00-236-5004
NSN 5996-01-574-7325
NSN 5905-01-214-3472
NSN 5985-00-199-4979
NSN 5998-00-450-8395
NSN 5895-01-458-8043
NSN 5945-01-042-6711
NSN 5930-01-555-6963
NSN 5985-01-436-4163