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 5960-01-415-3574
NSN 6135-00-351-8606
NSN 5930-01-626-0355
NSN 6645-00-762-7452
NSN 5925-01-149-3066
NSN 5945-01-057-8423
NSN 5985-01-269-3551
NSN 5920-01-218-6191
NSN 6620-00-153-0982
NSN 5996-01-479-1691
NSN 5935-01-422-2963
NSN 5915-01-284-8905