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 5998-01-642-5371
NSN 6145-00-847-2323
NSN 5990-01-255-7387
NSN 5950-01-481-5865
NSN 5930-00-466-3643
NSN 6135-01-084-1609
NSN 5930-00-604-4997
NSN 6320-01-397-9995
NSN 6110-01-467-9870
NSN 2925-01-384-4139
NSN 6620-01-253-0374
NSN 5999-01-468-6805