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 6145-00-155-5297
NSN 5960-01-135-0463
NSN 6150-01-386-5158
NSN 5930-00-038-0747
NSN 5905-01-310-1043
NSN 5920-01-418-1821
NSN 6130-01-253-1542
NSN 6105-01-388-1115
NSN 6145-01-262-3514
NSN 6240-01-519-8781
NSN 6320-00-036-3688
NSN 6610-01-555-8364