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 6240-00-803-2777
NSN 5965-00-624-4134
NSN 5925-00-903-3417
NSN 5950-01-535-6326
NSN 5905-00-172-4783
NSN 6645-01-023-8020
NSN 5935-01-433-9476
NSN 5925-00-847-7725
NSN 6320-01-160-0416
NSN 6220-00-991-1104
NSN 5920-00-929-8095
NSN 5925-01-289-9340