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 6220-01-050-7510
NSN 5945-00-483-4056
NSN 5950-00-660-9497
NSN 6645-01-248-3123
NSN 5990-00-112-2440
NSN 6620-01-550-6059
NSN 6135-01-286-9563
NSN 5990-01-128-7599
NSN 5835-01-185-1102
NSN 5950-00-008-2677
NSN 5975-01-523-7232
NSN 5998-01-270-3219