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 5990-01-234-8646
NSN 5835-01-051-7584
NSN 6150-00-939-2242
NSN 5930-01-177-7481
NSN 5998-00-909-3922
NSN 5895-00-292-2872
NSN 5996-01-514-1610
NSN 5990-00-446-0518
NSN 6130-01-494-1998
NSN 6220-01-634-0660
NSN 6685-01-440-4624
NSN 6150-01-096-9056