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 5996-01-533-3219
NSN 6145-00-187-4449
NSN 6145-00-596-8447
NSN 5998-00-246-7200
NSN 7035-01-079-6560
NSN 6220-01-179-8278
NSN 7035-00-231-2871
NSN 7035-00-300-3208
NSN 5975-00-983-5239
NSN 5960-00-602-9906
NSN 4140-00-218-0804
NSN 5998-01-444-1287