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 6145-01-086-7517
NSN 6150-00-921-4440
NSN 6320-01-029-4220
NSN 5996-00-036-5935
NSN 5910-01-652-8456
NSN 5910-01-100-4019
NSN 5998-00-113-3696
NSN 6240-00-155-7806
NSN 6110-00-462-7456
NSN 6645-01-426-8621
NSN 6320-01-459-6992
NSN 6620-01-115-2926