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 5996-01-023-3317
NSN 5965-01-609-5241
NSN 6110-01-555-7446
NSN 6645-00-057-3499
NSN 5945-01-264-1878
NSN 6620-01-175-3429
NSN 5925-01-468-4604
NSN 6145-00-009-0619
NSN 5855-00-135-9064
NSN 5985-00-636-5676
NSN 5975-01-420-5622
NSN 5965-01-215-0993