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 5960-01-431-4291
NSN 5930-01-320-0953
NSN 5910-01-088-6848
NSN 6240-01-145-4916
NSN 5905-01-434-1821
NSN 5950-01-624-8591
NSN 5915-01-547-3168
NSN 5985-01-364-8213
NSN 6620-00-113-4530
NSN 4140-01-469-2266
NSN 6220-00-564-2868
NSN 6645-01-400-1137