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 6610-01-225-2285
NSN 6620-01-421-6949
NSN 5925-01-510-6291
NSN 5965-01-406-0198
NSN 6240-01-653-9921
NSN 5915-01-629-6878
NSN 6650-01-442-7893
NSN 5996-00-415-2160
NSN 4140-01-076-3720
NSN 5965-01-089-8579
NSN 6240-01-602-8238
NSN 5915-01-532-2594