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 6610-01-423-9219
NSN 6240-01-163-8795
NSN 5855-00-782-7714
NSN 6650-01-254-2744
NSN 5835-00-113-6090
NSN 5950-01-031-1713
NSN 5910-01-308-4028
NSN 5990-01-468-1292
NSN 5925-01-530-4513
NSN 6105-01-349-1558
NSN 7035-01-498-2510
NSN 5895-01-554-8489