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 6685-01-555-0526
NSN 5925-01-556-3137
NSN 6320-01-214-0350
NSN 6150-00-312-2164
NSN 5945-00-547-7995
NSN 6135-01-369-9792
NSN 5920-01-049-8949
NSN 6105-00-222-6194
NSN 6105-01-281-0310
NSN 4140-00-841-5905
NSN 5990-00-232-3965
NSN 7035-00-521-4319