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 7035-01-351-4111
NSN 2925-01-157-9204
NSN 5975-00-558-2495
NSN 5990-01-414-1184
NSN 6135-01-260-7180
NSN 5960-01-444-8163
NSN 5990-01-534-8609
NSN 5999-01-447-2960
NSN 5920-00-196-0302
NSN 5965-01-164-0561
NSN 5835-01-386-4027
NSN 4140-00-761-3880