Heat treated
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 5996-00-932-5301
NSN 5998-01-548-3707
NSN 6130-01-168-8001
NSN 5935-01-534-2055
NSN 5990-01-430-4651
NSN 6110-00-001-8091
NSN 5905-00-354-1777
NSN 7035-01-417-6261
NSN 6145-01-528-6388
NSN 4140-01-501-5394
NSN 6320-00-977-3930
NSN 5935-01-228-2425