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 6130-01-328-2981
NSN 5945-00-412-1217
NSN 6610-00-211-9095
NSN 5999-01-655-3484
NSN 6145-01-294-6011
NSN 6320-01-583-6809
NSN 6610-00-564-1728
NSN 6610-01-515-4967
NSN 2925-01-510-2221
NSN 7035-01-236-5743
NSN 6135-01-447-5083
NSN 6220-01-528-7219