What it is
AN8 hex head bolt, machine, aircraft (AN3 THRU AN20), Hex head, 1/2 -20 UNF-3A, shank (A dia) .499-.495", grip 2-3/16" (±1/64), length 2-31/32" (+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
AN8-27 | SpecLok