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 6320-00-993-6120
NSN 5835-00-233-6327
NSN 6135-01-247-5660
NSN 6105-00-526-8144
NSN 6685-01-176-2445
NSN 5895-01-422-8095
NSN 5999-01-147-5317
NSN 6320-00-521-9350
NSN 5835-01-228-4474
NSN 5965-00-246-5612
NSN 6150-01-473-1178
NSN 5910-01-595-6126