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 6105-01-350-4890
NSN 5990-00-132-6430
NSN 6135-01-303-0295
NSN 5990-01-271-1628
NSN 5960-01-632-6576
NSN 6240-00-460-3952
NSN 5960-01-505-2426
NSN 5990-01-196-2953
NSN 5925-00-915-1204
NSN 5895-00-212-7451
NSN 5990-01-301-6850
NSN 2925-01-129-1261