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 6620-01-199-7570
NSN 5920-01-224-7028
NSN 6610-01-399-1295
NSN 6105-00-113-9364
NSN 5996-01-105-0382
NSN 5925-01-461-8378
NSN 6320-01-512-2031
NSN 5990-01-370-7912
NSN 6145-01-314-5697
NSN 7035-01-633-9537
NSN 5945-00-172-4833
NSN 5930-01-271-2274