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 5965-01-282-4587
NSN 5905-01-087-9960
NSN 5965-01-026-8624
NSN 6645-01-308-9349
NSN 6320-01-481-7322
NSN 4140-01-601-0610
NSN 6610-00-620-3802
NSN 5835-01-511-5337
NSN 6130-00-230-7257
NSN 5945-01-026-6859
NSN 6220-01-113-8861
NSN 5920-01-651-6628