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 5996-01-185-5415
NSN 4140-00-886-1710
NSN 6145-00-150-5049
NSN 5975-01-186-0114
NSN 5996-00-112-4588
NSN 6645-01-561-7432
NSN 5915-00-678-5300
NSN 6240-01-246-8213
NSN 6130-01-615-5099
NSN 5945-01-140-5619
NSN 7035-01-530-2766
NSN 6650-01-024-9554