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 5855-01-509-3781
NSN 6240-01-176-0223
NSN 5855-00-221-9435
NSN 5960-00-269-4762
NSN 5965-00-811-3793
NSN 5855-01-602-9653
NSN 6145-00-135-1436
NSN 5990-01-052-9343
NSN 5996-01-381-0868
NSN 5905-01-410-7780
NSN 6620-01-576-7723
NSN 5965-00-064-8209