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 5998-00-432-9373
NSN 5985-01-300-9222
NSN 4140-00-518-2744
NSN 6220-00-978-2903
NSN 5895-01-607-0038
NSN 6650-00-210-4399
NSN 5996-01-101-8770
NSN 5920-01-471-1234
NSN 5999-00-515-2134
NSN 5990-01-160-6978
NSN 5960-01-512-0233
NSN 5895-01-521-4033