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 6320-01-439-5264
NSN 5915-01-499-2205
NSN 6645-01-279-7647
NSN 6130-01-260-7922
NSN 6320-01-643-0850
NSN 7035-00-731-8729
NSN 6645-01-030-5288
NSN 5950-01-654-2679
NSN 6110-01-591-3036
NSN 2925-01-631-7004
NSN 4140-01-099-8096
NSN 6620-00-255-5962