What it is
AN4 hex head bolt, machine, aircraft (AN3 THRU AN20), Hex head, 1/4 -28 UNF-3A, shank (A dia) .249-.246", grip 5-13/16" (±1/64), length 6-9/32" (+1/32 -1/64) (AN3 THRU AN20 Rev. 12 sheet 2)
Equivalents
No equivalent on file: no maker document names one and the government catalog lists none on its stock number.
Install tooling, by who made the part
Not documented for this part number. Ask a tooling specialist →

Reference only: the drawing and its process spec govern. How to read this

Full detail: decode, cited documents, every stock number
AN4-62 | SpecLok