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 6220-01-277-7712
NSN 5925-00-932-9250
NSN 5996-01-632-8592
NSN 5975-01-616-5235
NSN 5960-00-204-7506
NSN 6650-00-152-5359
NSN 5945-00-116-5676
NSN 7035-00-104-7613
NSN 6220-00-150-7286
NSN 5915-00-455-7703
NSN 6135-01-425-5553
NSN 2925-01-454-2046