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 6685-01-440-8749
NSN 5910-01-462-5079
NSN 5915-01-339-5079
NSN 5996-00-629-2894
NSN 6620-01-085-2915
NSN 5975-00-644-4972
NSN 6240-01-653-9921
NSN 5905-00-321-8431
NSN 5950-01-558-3118
NSN 6645-00-978-2575
NSN 5998-01-038-8580
NSN 6105-01-589-5907