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 5835-01-485-0210
NSN 5835-00-665-1428
NSN 6130-01-255-6265
NSN 7035-01-150-6303
NSN 5925-01-364-6916
NSN 5965-01-191-0735
NSN 6320-01-253-1028
NSN 6130-00-323-8300
NSN 5905-00-310-4495
NSN 4140-00-671-1121
NSN 4140-01-563-7656
NSN 4140-00-089-0490