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 5895-00-166-0209
NSN 5855-01-085-5354
NSN 5855-01-465-6872
NSN 5998-00-553-8061
NSN 6130-01-433-2215
NSN 5999-00-721-4116
NSN 7035-00-834-2090
NSN 2925-01-412-9520
NSN 6610-00-911-8296
NSN 6220-01-366-1972
NSN 6145-00-099-8986
NSN 5975-01-166-7551