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 6110-01-322-8585
NSN 6135-01-340-2599
NSN 6105-00-446-2971
NSN 6610-00-259-2992
NSN 6135-00-027-3914
NSN 6145-01-442-8143
NSN 5950-01-452-3651
NSN 6650-01-633-9147
NSN 5930-00-277-4704
NSN 7035-01-527-3728
NSN 6645-00-720-3953
NSN 5998-00-035-5308