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 5920-01-466-4500
NSN 6135-01-458-3851
NSN 6620-00-910-5464
NSN 5935-01-205-3700
NSN 5985-01-165-0411
NSN 5996-01-585-3295
NSN 5930-01-248-5929
NSN 6130-00-507-0570
NSN 6610-01-144-8401
NSN 5935-01-298-1213
NSN 6645-01-113-2525
NSN 5855-01-074-3336