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 6650-01-084-5537
NSN 5905-00-115-5382
NSN 6105-00-256-6369
NSN 4140-01-061-6944
NSN 6145-01-227-8720
NSN 6130-00-958-1064
NSN 6620-00-244-8020
NSN 2925-01-320-6512
NSN 5950-01-184-5442
NSN 5905-01-352-1918
NSN 5990-01-277-9753
NSN 5895-01-421-2690