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 7035-00-235-3529
NSN 7035-00-329-4015
NSN 6650-01-040-6971
NSN 5925-01-020-4303
NSN 6685-01-401-5360
NSN 5925-00-169-4513
NSN 5990-01-240-7288
NSN 5910-00-688-3270
NSN 5930-01-464-6003
NSN 6145-01-424-4915
NSN 2925-00-408-9829
NSN 5915-01-317-3541