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 6320-01-558-2141
NSN 2925-01-244-3016
NSN 6620-00-932-6508
NSN 6135-01-092-4734
NSN 5920-01-632-0929
NSN 2925-01-306-4228
NSN 6135-01-487-6275
NSN 5905-01-525-5138
NSN 5855-01-651-3794
NSN 5835-01-416-6455
NSN 6620-00-810-6774
NSN 5965-01-125-5367