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 6610-00-682-6215
NSN 5950-00-115-2241
NSN 6130-01-313-8939
NSN 5945-01-341-3413
NSN 4140-00-519-2781
NSN 5975-00-660-6652
NSN 4140-01-314-0235
NSN 5925-00-100-0102
NSN 6320-01-335-8336
NSN 5915-01-479-0779
NSN 5895-01-496-9405
NSN 5895-01-137-6658