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 5855-01-147-6024
NSN 6645-01-195-0201
NSN 5910-01-351-2844
NSN 6240-01-240-1596
NSN 5855-01-528-0304
NSN 6320-00-242-3300
NSN 5895-01-049-8008
NSN 5950-01-176-9826
NSN 5895-00-379-4699
NSN 6145-01-079-3265
NSN 6320-01-149-8865
NSN 5965-01-168-8180