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SAE J1131

Performance Requirements for SAE J844 Nonmetallic Air Brake Tubing and SAE J246 Compression Fitting Assemblies Used in Vehicular Air Brake Systems

STANDARD published on 1.10.2025

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The information about the standard:

Designation standards: SAE J1131
Publication date standards: 1.10.2025
Country: American technical standard
Category: Technical standards SAE

Annotation of standard text SAE J1131 :


This SAE Standard is intended to establish uniform performance criteria and methods of testing compression tube fittings with SAE J844 air brake tubing as used in vehicular air brake systems.

This document also establishes minimum qualifications for tensile and pressure capabilities, vibration durability under cyclic temperatures, serviceability, and fitting compatibility requirements. The specific tests and performance criteria applicable to the tubing are set forth in SAE J844.

NOTE: The test values contained in this performance standard are for test purposes only. For environmental and usage limitations, refer to SAE J844. For fittings, a type of fitting for use with SAE J844 nonmetallic tubing is included in SAE J246; however, it is not intended to restrict or preclude the use of other designs of fittings that comply with this document.

SUBFILE: Commercial Vehicle
TYPE OF DOCUMENT: Ground Vehicle Standard