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 4140-00-205-6491
NSN 5999-01-228-5265
NSN 5996-00-377-9464
NSN 5835-00-779-2836
NSN 6240-00-617-1719
NSN 5930-01-078-6761
NSN 6320-01-062-9351
NSN 5975-01-484-2484
NSN 6320-00-977-3930
NSN 6135-01-281-4758
NSN 5960-01-438-0245
NSN 6645-01-447-6777