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 6135-01-242-6484
NSN 6650-00-279-5741
NSN 5910-00-193-4558
NSN 6620-00-106-3350
NSN 6685-01-067-8474
NSN 5835-01-532-9373
NSN 5915-01-479-8398
NSN 5935-00-633-8302
NSN 5915-00-096-4432
NSN 6135-01-299-7252
NSN 6145-01-310-4023
NSN 5930-00-232-4777