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 2925-01-180-7793
NSN 6110-01-103-3142
NSN 6130-01-212-9912
NSN 2925-00-468-5273
NSN 6240-01-164-9175
NSN 5855-01-436-2862
NSN 5965-01-258-5662
NSN 5945-01-355-8533
NSN 5920-00-456-5211
NSN 5998-00-222-7755
NSN 6645-01-623-8825
NSN 6650-01-099-3139