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 5920-00-305-2867
NSN 7035-00-392-5417
NSN 6620-01-051-2045
NSN 5960-00-989-1251
NSN 5925-01-286-9988
NSN 5975-01-449-1203
NSN 5975-01-483-9632
NSN 6130-01-172-9489
NSN 5945-00-363-9481
NSN 5985-01-058-5465
NSN 5835-01-073-6133
NSN 5996-01-577-8354