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 5855-01-656-6808
NSN 5965-00-866-3371
NSN 7035-01-242-2052
NSN 5996-01-397-7978
NSN 5930-01-346-3445
NSN 6135-01-437-6409
NSN 6240-00-946-7858
NSN 6620-01-259-5944
NSN 5945-01-369-8138
NSN 6610-01-149-0720
NSN 6610-01-017-9063
NSN 5960-01-091-2444