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 6110-00-065-7505
NSN 5895-01-521-6152
NSN 5990-01-193-0487
NSN 6130-00-334-8403
NSN 6220-00-832-4710
NSN 5930-01-631-1420
NSN 6685-01-578-7668
NSN 6130-01-334-5863
NSN 6145-00-434-1681
NSN 5996-00-257-5646
NSN 5975-00-057-9415
NSN 6150-01-147-4604