Heat treated
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 6320-00-468-8421
NSN 5855-01-236-9645
NSN 2925-01-411-4666
NSN 5945-00-216-7432
NSN 7035-01-487-6481
NSN 5965-00-434-7617
NSN 6130-01-543-2892
NSN 5920-00-417-8768
NSN 5945-01-349-1810
NSN 5998-01-101-8493
NSN 5999-00-601-9802
NSN 5855-01-543-3338