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 5910-01-370-3977
NSN 5920-01-616-2682
NSN 5895-01-222-0639
NSN 5998-01-271-1768
NSN 6150-01-422-6417
NSN 5985-01-388-6538
NSN 5985-00-281-0810
NSN 6645-01-560-3034
NSN 6150-01-067-8226
NSN 6220-01-360-9659
NSN 6105-00-455-8879
NSN 5915-00-825-6677