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 5985-00-715-5578
NSN 6620-01-659-8887
NSN 5935-01-025-0926
NSN 5930-01-429-3375
NSN 6110-00-452-0448
NSN 5985-01-258-5943
NSN 5920-01-659-0690
NSN 5930-01-011-2778
NSN 6135-01-380-4396
NSN 6145-01-474-5459
NSN 6145-00-427-7201
NSN 5965-00-194-9428