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 5835-01-464-7038
NSN 4140-00-241-0065
NSN 6610-01-218-7668
NSN 6645-00-160-0503
NSN 6130-01-212-9912
NSN 5998-00-912-4188
NSN 7035-01-569-1580
NSN 6220-01-415-0553
NSN 5990-00-051-7881
NSN 6220-01-316-7102
NSN 5996-01-437-4894
NSN 5925-01-343-4418