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 6240-01-565-6276
NSN 5996-00-265-6573
NSN 5835-01-581-1957
NSN 5835-01-086-6999
NSN 5965-01-380-5875
NSN 6130-01-237-3295
NSN 5990-01-139-6042
NSN 5915-01-297-2872
NSN 6130-01-127-2186
NSN 6645-01-144-2161
NSN 7035-01-449-1846
NSN 6320-00-116-3658