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 5975-00-079-0022
NSN 7035-01-609-3000
NSN 5905-00-717-3347
NSN 5855-00-149-0766
NSN 5945-01-173-2550
NSN 6145-01-496-8154
NSN 5965-00-337-0777
NSN 6110-01-335-5770
NSN 6145-01-127-7730
NSN 5910-01-021-3766
NSN 6105-01-173-6972
NSN 6135-00-505-0679