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 6620-01-412-7426
NSN 5835-00-185-4919
NSN 6130-01-259-4661
NSN 6135-00-871-3646
NSN 6320-01-573-6490
NSN 7035-01-298-5154
NSN 5950-00-042-9865
NSN 5975-01-265-5122
NSN 6110-01-200-7447
NSN 5950-01-590-6393
NSN 5920-01-163-6327
NSN 6645-01-383-7362