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 6645-01-099-1511
NSN 5990-01-287-1682
NSN 5915-01-197-1857
NSN 6320-01-506-9439
NSN 6130-00-316-4050
NSN 5910-01-261-9536
NSN 5985-00-390-8837
NSN 5990-00-543-2755
NSN 6685-01-285-6459
NSN 6610-00-051-4139
NSN 6110-01-318-0716
NSN 5910-01-442-7789