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 5950-01-099-1683
NSN 5950-00-108-8530
NSN 5960-00-140-9583
NSN 5910-00-397-1849
NSN 5925-01-314-5268
NSN 6645-00-849-4429
NSN 7035-01-532-0009
NSN 5915-01-597-0130
NSN 5960-01-474-4843
NSN 5998-00-143-0485
NSN 5965-00-781-3578
NSN 6320-00-174-1362