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 5910-01-602-8415
NSN 7035-01-223-4097
NSN 7035-01-555-0169
NSN 6220-00-770-7658
NSN 5925-00-023-4154
NSN 6145-01-029-7056
NSN 5990-01-414-7618
NSN 6620-00-228-4986
NSN 5930-01-352-5428
NSN 6220-01-369-5528
NSN 5895-00-594-6905
NSN 5960-00-807-9187