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 6150-01-429-1236
NSN 5920-01-055-2024
NSN 5990-01-421-3325
NSN 5950-00-628-4194
NSN 5905-01-242-5022
NSN 5835-01-495-0595
NSN 5990-01-254-3197
NSN 5975-00-249-5063
NSN 6645-01-322-8431
NSN 6645-01-421-6909
NSN 6135-00-477-8847
NSN 5905-01-435-6357