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 5895-00-882-4004
NSN 6620-00-151-5363
NSN 6135-01-190-2628
NSN 5930-00-156-3700
NSN 5925-01-648-4605
NSN 5965-01-341-1480
NSN 5945-01-650-0190
NSN 5835-00-168-9623
NSN 5920-01-214-2128
NSN 5920-00-341-6340
NSN 5905-00-711-0689
NSN 5998-01-591-6895