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 4140-01-113-8313
NSN 6610-01-112-0447
NSN 5950-01-413-3226
NSN 5945-01-441-4641
NSN 5985-01-058-6288
NSN 5835-01-160-7282
NSN 6220-00-279-8819
NSN 6135-00-062-5080
NSN 6620-00-267-5273
NSN 5915-01-391-7830
NSN 5905-00-354-0559
NSN 5950-01-607-0463