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 5975-01-572-2070
NSN 5895-01-619-8777
NSN 5965-00-892-3850
NSN 5950-00-152-1837
NSN 5905-01-179-0335
NSN 5905-00-021-9500
NSN 5905-01-575-9084
NSN 5999-01-509-7799
NSN 6620-00-730-8699
NSN 6320-00-194-4252
NSN 5990-01-463-5400
NSN 5999-00-196-3635