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 5965-01-232-6509
NSN 6150-01-014-5691
NSN 5965-01-441-9505
NSN 5835-00-841-2650
NSN 6685-01-075-5632
NSN 5990-00-038-6482
NSN 5998-01-054-4180
NSN 6135-01-364-0667
NSN 5945-01-299-6483
NSN 5985-01-626-6851
NSN 5990-00-145-1187
NSN 6320-01-230-8444