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 6320-01-228-2380
NSN 6150-01-519-9309
NSN 5996-01-354-0502
NSN 5999-01-554-5253
NSN 5985-01-644-4877
NSN 6610-01-290-2627
NSN 5965-01-605-0090
NSN 5960-00-875-4655
NSN 2925-00-159-9003
NSN 6220-01-225-6073
NSN 2925-00-504-2363
NSN 6110-01-210-6159