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 6145-01-390-7725
NSN 6110-00-911-4000
NSN 5855-01-426-5589
NSN 5920-00-913-0475
NSN 7035-01-313-6973
NSN 6110-01-020-8844
NSN 5945-01-273-7318
NSN 6220-00-165-7095
NSN 6610-00-664-2190
NSN 5950-01-521-1127
NSN 6110-00-525-3418
NSN 5975-00-098-0131