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 5920-01-477-1172
NSN 5905-00-005-2895
NSN 7035-00-020-2227
NSN 6650-00-164-7480
NSN 5965-00-804-1374
NSN 6320-00-174-1362
NSN 5925-01-368-1501
NSN 6320-01-506-9439
NSN 5975-01-556-2738
NSN 2925-01-356-3168
NSN 6110-01-457-8039
NSN 6130-01-332-8899