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 5920-01-218-5742
NSN 5855-01-629-9005
NSN 6240-01-612-5386
NSN 5905-00-195-3770
NSN 5996-00-107-5357
NSN 5930-01-423-1040
NSN 6110-01-552-1291
NSN 5996-01-557-1996
NSN 5905-01-228-3183
NSN 5999-00-472-9710
NSN 5950-01-126-9748
NSN 5985-01-252-9281