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 5895-01-167-7656
NSN 5920-01-243-0611
NSN 4140-01-271-1918
NSN 5985-00-035-4558
NSN 5910-01-335-8924
NSN 5855-01-542-9059
NSN 6645-01-641-1575
NSN 5996-01-312-8497
NSN 5985-01-438-0130
NSN 6320-01-462-2295
NSN 5975-01-543-6355
NSN 5990-01-433-7886