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 5855-00-885-8452
NSN 5965-00-910-3233
NSN 5999-01-379-8495
NSN 4140-00-238-5220
NSN 6620-01-478-9667
NSN 5996-00-230-5550
NSN 6110-01-142-9831
NSN 5925-01-474-3579
NSN 5895-01-529-0863
NSN 7035-00-523-7492
NSN 6685-01-612-0511
NSN 6320-00-994-0179