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 5915-00-439-3832
NSN 5910-01-118-2580
NSN 6240-01-254-9448
NSN 5999-00-919-3063
NSN 5855-01-100-3272
NSN 5925-01-512-1651
NSN 6610-01-526-8855
NSN 4140-01-487-7425
NSN 6320-01-176-8367
NSN 6145-01-520-9931
NSN 5965-00-189-9394
NSN 6620-00-761-2540