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 6135-00-078-9931
NSN 2925-01-461-6372
NSN 5915-01-281-7383
NSN 6320-00-004-9158
NSN 2925-00-185-1618
NSN 5999-00-986-3505
NSN 5915-01-045-9291
NSN 5960-01-614-8005
NSN 6150-01-361-8133
NSN 5915-01-094-5681
NSN 5985-01-417-2139
NSN 2925-01-471-3365