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 5996-00-277-7384
NSN 6650-01-434-0331
NSN 5895-01-306-6950
NSN 4140-01-583-9725
NSN 7035-00-476-7178
NSN 6620-01-349-4469
NSN 6135-01-017-3001
NSN 5835-01-623-3328
NSN 6610-01-451-8096
NSN 6620-01-212-8089
NSN 6105-01-074-1180
NSN 4140-01-150-0740