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 6320-01-495-0512
NSN 5945-01-255-6333
NSN 6150-01-536-2814
NSN 5895-00-255-7784
NSN 5965-01-019-0939
NSN 6685-01-035-3891
NSN 6650-01-511-2855
NSN 5999-01-227-5223
NSN 5930-00-867-0389
NSN 6620-01-631-0700
NSN 5930-01-250-2889
NSN 6685-01-116-3422