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 2925-01-024-2662
NSN 6150-01-496-4050
NSN 6685-01-172-9381
NSN 5960-00-274-4905
NSN 5990-00-636-4218
NSN 5915-01-571-7341
NSN 5975-00-226-6677
NSN 6145-00-521-0001
NSN 5996-01-449-5535
NSN 4140-01-502-4457
NSN 6610-01-266-8691
NSN 6130-01-185-3042