Hello,
Please see the attached file. The drawing calls for a 5"-12 UNC-2B threaded thru hole. Is this a legit thread callout? I've found one mention of it in my machinery's handbook in the "Recommended Hole Size Limits Before Tapping Unified Threads" table but am struggling to find any more...
What is the maximum size of a nozzle opening being welded per the figure in the subject line?
UW-16(d)(1)addresses necks attached by fillet or partial penetration welds but makes no mention of maximum size opening in the vessel.
UW-16(f)(3)(-a)(-2)states:"the maximum size of the opening in the...