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 6645-00-171-9639
NSN 5975-00-382-4802
NSN 5996-01-088-7074
NSN 5925-01-433-9512
NSN 5905-01-562-8702
NSN 5925-01-487-6830
NSN 2925-01-509-0767
NSN 5990-00-345-8967
NSN 6145-01-313-1420
NSN 6105-00-957-8237
NSN 5950-01-359-8952
NSN 2925-01-374-2402