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 6150-00-868-5599
NSN 4140-01-243-1658
NSN 5985-01-081-2048
NSN 6150-00-998-3448
NSN 5905-01-228-3020
NSN 5975-01-154-6893
NSN 5920-01-474-8172
NSN 6110-00-212-9130
NSN 5990-01-108-7785
NSN 2925-01-499-8720
NSN 5925-00-885-9497
NSN 5998-01-004-0799