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 6145-01-351-8630
NSN 5935-01-581-0160
NSN 5999-00-138-7805
NSN 6240-01-631-4066
NSN 6150-01-382-9555
NSN 6105-00-959-5468
NSN 5990-01-213-6319
NSN 4140-01-152-9161
NSN 5965-01-506-3320
NSN 6240-00-624-8440
NSN 5895-01-231-9519
NSN 5965-00-455-7581