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 6620-00-780-7786
NSN 5975-00-079-0022
NSN 2925-00-652-3408
NSN 5910-01-510-1919
NSN 5930-01-195-6632
NSN 6610-00-191-5317
NSN 6240-01-442-7746
NSN 5985-00-159-6213
NSN 4140-01-545-6020
NSN 6145-01-181-3566
NSN 5945-00-036-3613
NSN 6685-01-591-1152