Departure from cited document: as modofied by o/a diameter and material thickness
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 2925-01-654-4621
NSN 5935-01-204-8333
NSN 5960-00-275-0910
NSN 6650-01-304-8132
NSN 4140-01-043-4181
NSN 5975-00-283-6686
NSN 6150-01-274-6349
NSN 6220-00-671-0384
NSN 5975-01-343-4447
NSN 5855-00-408-2611
NSN 6620-00-104-9722
NSN 4140-01-573-1803