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 5905-01-432-1157
NSN 5945-00-089-2625
NSN 6240-01-166-1807
NSN 6130-00-104-8196
NSN 5960-01-265-0354
NSN 6610-01-089-2487
NSN 6620-00-471-9732
NSN 5985-01-517-7227
NSN 6150-00-017-9121
NSN 5990-01-646-8048
NSN 6320-01-504-3948
NSN 5965-01-415-1521