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 6135-01-442-7275
NSN 5910-01-398-1623
NSN 6150-00-100-4373
NSN 5895-00-594-8819
NSN 5945-01-450-7020
NSN 6620-01-433-7952
NSN 6110-00-679-8961
NSN 5965-00-575-4089
NSN 6130-00-986-8234
NSN 5950-01-227-2466
NSN 5998-01-351-7052
NSN 5945-01-377-9108