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 6220-00-473-0517
NSN 5985-01-046-7366
NSN 5905-00-669-3268
NSN 5855-00-151-3853
NSN 6105-01-415-9808
NSN 5985-01-535-6924
NSN 6105-01-563-5086
NSN 5998-01-627-4121
NSN 4140-01-159-6664
NSN 6645-01-014-2849
NSN 6620-01-043-6424
NSN 5965-01-558-5380