SAE Standards Works
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
ARP4919 - Fluid Connections, Fittings, Hex Width
New Project Request
Fluid Connections, Fittings, Hex Width
This SAE Aerospace Recommended Practice (ARP) is intended as a guide toward standard practice for selection of nominal hex widths for fittings.<p>Primarily for fittings which are machined from bar stock and incorporate a hex wrenching surface. The document applies to union fittings (both ends the same size). For reducer fittings, use the hex width for the largest fitting end.
. All rights reserved.
Intellectual Property Policy
Terms & Conditions