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 6135-00-519-1325
NSN 5920-01-510-1271
NSN 5965-01-633-8849
NSN 5905-01-372-8612
NSN 5930-00-293-2492
NSN 5965-00-577-1242
NSN 5905-01-462-5417
NSN 5895-01-068-4764
NSN 5835-01-205-6614
NSN 5935-01-424-5773
NSN 6650-01-576-8520
NSN 5975-01-476-8899