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 5945-01-391-4652
NSN 5985-00-080-3445
NSN 4140-01-389-1999
NSN 2925-01-197-7864
NSN 7035-01-480-5537
NSN 6620-01-488-6772
NSN 5975-01-091-3278
NSN 5855-00-149-0766
NSN 5960-01-056-4982
NSN 5965-01-245-1552
NSN 5945-01-197-8417
NSN 5985-00-170-9097