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 5975-00-665-2828
NSN 6685-01-280-5181
NSN 5960-01-425-1454
NSN
NSN 5920-00-928-6721
NSN 6105-01-184-3209
NSN 5935-01-014-9573
NSN 6685-00-916-5583
NSN 5945-01-215-6714
NSN 5975-01-204-6005
NSN 5915-01-014-6309
NSN 6645-00-130-8464