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 5920-01-301-7144
NSN 4140-00-114-7634
NSN 6150-01-413-1804
NSN 5915-01-647-9919
NSN 5950-01-027-0035
NSN 6105-01-369-2430
NSN 5855-00-782-7714
NSN 6130-01-247-9135
NSN 6150-01-507-9536
NSN 5835-01-631-3940
NSN 5925-01-626-4697
NSN 5910-01-422-3721