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 6320-01-392-6922
NSN 5975-00-247-1230
NSN 6110-01-461-1058
NSN 6240-01-542-8886
NSN 5855-00-089-3974
NSN 6610-00-430-5208
NSN 5975-01-459-4217
NSN 5950-00-419-3599
NSN 5996-00-340-5634
NSN 5990-00-452-9194
NSN 6135-01-151-2705
NSN 5905-01-399-6818