Standard

SAE ARP4919A

Published

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Abstract

This SAE Aerospace Recommendation Practice (ARP) is intended as a guide toward standard practice for selection of nominal hex widths for fittings. Field of Application: 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.

Document information

  • Standard from SAE_AC
  • Published:
  • Version: 0
  • Document type: IS