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 6685-00-481-6673
NSN 5999-01-628-6980
NSN 6610-00-394-1427
NSN 5990-01-370-5684
NSN 6685-00-230-4267
NSN 5905-01-542-9474
NSN 6685-01-051-7542
NSN 5960-01-347-0751
NSN 5985-01-615-9405
NSN 6620-00-523-9437
NSN 5915-01-358-6474
NSN 6645-01-006-6735