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 5975-01-628-3177
NSN 6130-01-233-1616
NSN 6650-01-388-7125
NSN 6645-01-324-0348
NSN 6610-01-632-8561
NSN 6145-00-060-5786
NSN 5925-00-977-5843
NSN 6220-01-227-1917
NSN 5950-01-176-0481
NSN 5996-01-577-1889
NSN 6145-01-176-4047
NSN 5855-01-621-9483