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 5910-00-171-3414
NSN 6110-01-060-6814
NSN 6685-01-352-7241
NSN 6220-01-100-2703
NSN 5895-00-545-8723
NSN 5996-01-383-4029
NSN 6135-01-124-2376
NSN 5925-00-606-6529
NSN 5915-00-925-2513
NSN 5835-01-261-2978
NSN 5975-00-058-7920
NSN 6610-01-400-2296