AN4-6

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 5/16" (±1/64), length 25/32" (+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 →

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

Full detail: decode, cited documents, every stock number

Head: Hex head
Diameter: 1/4 -28 UNF-3A, shank (A dia) .249-.246"
Grip / length: grip 5/16" (±1/64), length 25/32" (+1/32 -1/64) (AN3 THRU AN20 Rev. 12 sheet 2)
Material: Non-corrosion resistant steel (no material letter)

Install tooling, by who made the partNot documented for this part number.

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Drop-in equivalents

Identical or approved-alternate part numbers, each with the document that states it.

No sourced equivalent on file for AN4-6. SpecLok only lists an equivalent when a manufacturer or government document states it.