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 5925-00-080-7507
NSN 6650-01-640-9370
NSN 5985-01-412-2111
NSN 6320-00-731-6134
NSN 6150-01-081-3301
NSN 6145-00-264-6277
NSN 5920-01-119-7149
NSN 5999-01-467-8206
NSN 5925-00-356-8007
NSN 5935-01-454-2401
NSN 6105-01-525-8860
NSN 5945-01-086-2148