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 6610-01-487-8307
NSN 6645-01-407-0204
NSN 5990-01-210-9788
NSN 5960-01-226-0342
NSN 5905-00-078-9600
NSN 6135-01-190-2628
NSN 5855-00-951-6483
NSN 5998-00-495-7951
NSN 5915-01-651-5390
NSN 6150-00-719-6119
NSN 5895-00-922-3034
NSN 2925-01-588-3507