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Standard

Torsion Strength Testing of Hydraulic Tube Joints
2023-07-06
CURRENT
ARP4457A
This Aerospace Recommended Practice (ARP) establishes uniform requirements and procedures to determine the torsional strength of permanent hydraulic tube joints. It also establishes testing equipment and apparatus for torsion testing.
Standard

Drawing Interpretation and Standard Machining Practices, Couplings, Fittings, and Hose Ends, Fluid Systems
2023-06-02
CURRENT
AS4296A
This SAE Aerospace Standard (AS) provides general information for the interpretation and clarification of engineering drawing requirements relating to the manufacture and inspection of fluid system couplings, tube fittings, and hose ends. Because it is impractical to define every minute detail of the part on the face of the drawing, this standard describes interpretations of dimensioning of general machining features and otherwise undefined tolerances that fall under the heading of “good shop practice.” This standard is supplemental to ASME Y14.5M-1994 and explains, defines, and interprets drawing terms or practices that are not addressed by ASME Y14.5M-1994. Unless otherwise specified in this standard, drawing interpretations contained in ASME Y14.5M-1994 shall apply.
Standard

T-Bolt and Eye Bolt, A286 CRES, 1000 °F Fatigue Rated
2021-09-01
CURRENT
AS4108D
This specification defines the requirements for A286 CRES T-bolts and eye bolts, with room temperature tensile strength of a minimum of 160000 psi, for use with clamps and V-band couplings at 1000 °F maximum ambient temperature.
Standard

References, Spacecraft and Spacecraft Servicing, Fluid System Components (Abbreviations, Acronyms, Definitions, Applicable Documents and Environmental Conditions)
2021-04-30
CURRENT
AIR4728A
This SAE Aerospace Information Report (AIR) presents reference information for use in preparing detailed specifications and other documents. The intent is to have a master reference document containing frequently required tabulations of information, such as the meaning of abbreviations, the spelled out wording of acronyms, the definition of terms, etc. so that such tabulations need not be repeated in recommended practice documents describing how to prepare technical documents. This document is intended to provide references in the field of fluid system components for space applications. Space applications include spacecraft, such as satellites, space stations, launch vehicles and space shuttles, and servicing equipment and components used for ground systems and launching and for servicing in space. Fluid system components include couplings, fittings, hose and tubing assemblies.
Standard

Clamp Assembly, Saddle Type, Cushioned, General Specification For
2020-04-21
CURRENT
AS85449B
This SAE Aerospace Standard (AS) defines the requirements for saddle-type clamps. Tests and criteria noted do not indicate any specific areas of application or usage. Supplemental testing may be necessary to determine suitability for specific environments and applications.
Standard

Service Damage Limits for Aircraft Hydraulic Tubing
2019-10-09
WIP
AIR1388C
This SAE Aerospace Information Report (AIR) is intended to assist in evaluating the serviceability of damaged hydraulic tubing lines. The performance requirements are outlined to which the defect sample were tested. Test methods and data are described and summarized. Permissible defect limits are listed for 6061-T6 aluminum return lines, 3000 psi hydraulic tubing of 21Cr-6Ni-9Mn SS, 304 1/8 hard, corrosion resistant steel (CRES), as well as 3Al-2.5V CWRS and 3Al-2.5V annealed, seamless titanium tubing. All dimensions are in inches unless otherwise noted.
Standard

Clamp Material, Injection Molded
2019-09-26
CURRENT
AIR1397B
This report presents the material properties and test requirements for an injection molded thermoplastic compound utilized for fabrication of AS1396 clamp block assembly.
Standard

Coupling Assembly, Threadless, Flexible, Self-Locking, Fixed Cavity, High Conductivity, Self-Bonding, Part Specification
2019-08-28
HISTORICAL
AS7510A
This SAE Aerospace Standard (AS) defines the requirements for a threadless, flexible, high conductive, self-bonding coupling assembly which, when installed on defined ferrules, provides a flexible connection for joining ducting and components in pressurized fluid systems. The assembled coupling is designed to provide interchangeability of parts and components between qualified manufacturers for use from -65 to +265 °F at 130 psi nominal operating pressures and for the service life of the aircraft system. FAR 23.954, FAR 25.603, FAR 25.605, FAR 25.609, FAR 25.613, FAR 25.901, FAR 25.954, and FAR 25.981 certification requirements have identified the need for high current capable flexible fluid assembled couplings. The coupling assembly does not require inspection or maintenance to remain current capable for the life of the aircraft.
Standard

Titanium Hydraulic Tubing, Ti-3Al-2.5V Cold Worked and Stress Relieved, Up to 35000 kPa (5080 psi), Requirements for Qualification Testing and Control
2019-06-04
CURRENT
AS5620C
This SAE Aerospace Standard (AS) shall be used in conjunction with AMS4946 to provide requirements for qualification testing and for qualified products listing (QPL) and qualified manufacturer listing (QML) for Ti-3Al-2.5V cold worked and stress relieved hydraulic system tubing. The basic tubing shall comply with the requirements of AMS4946.
Standard

Standard Words for Test Paragraphs for Tube Fittings and Tube Assemblies
2019-04-30
CURRENT
AIR1378C
This Aerospace Information Report (AIR) is written as a guide for the wording recommended for use, when applicable, in design and procurement specifications for tube fittings and tube assemblies, both for general aerospace fluid power applications and for specific applications.
Standard

Flexure Testing of Hydraulic Tubing Joints and Fittings
2019-04-23
CURRENT
ARP1185C
This SAE Aerospace Recommended Practice (ARP) establishes flexure test procedures to determine and classify the fatigue strengths of reconnectable or permanent hydraulic tube joints. The procedure is intended for conducting flexure tests of fittings and joints for hydraulic tubing materials such as AMS 5561 (21Cr-6Ni-9Mn) steel or AMS 4944 (3AL-2.5V) titanium. A mean stress is applied by holding system pressure in the specimens and flexing in a rotary or planar bending test machine.
Standard

Fittings, Weld, Fluid Connection, 5000 psi Maximum
2019-03-26
CURRENT
AS4510A
This SAE Aerospace Standard (AS) establishes the requirements for weld fluid connection fittings and rings to be orbital arc welded to tubing for use in aircraft fluid systems up to a maximum operating pressure of 5000 psi.
Standard

Fittings, Weld to Beam, Seal, Fluid Connection
2019-03-20
CURRENT
AS4510/2A
This SAE Aerospace Standard (AS) establishes the requirements for fluid fittings that combine both weld fitting end and beam seal fitting end connections for use in all types of fluid systems.
Standard

Prestressing (Autofrettaging) of Hydraulic Tubing Lines
2019-02-06
CURRENT
AIR1379B
This AIR is intended to describe and document a process presently in use for proof testing, which at the same time improves the fatigue life of 304 1/8 hard CRES and 3Al-2.5V CWSR titanium hydraulic tubing lines.
Standard

Coupling Assembly, Self-Sealing, One Side Only, Hydraulic
2019-01-10
CURRENT
AS1896B
This document establishes the requirements for aircraft, hydraulic couplings, self-sealing one side only, for use in Type II hydraulic systems (-65 to +275 °F temperature range) as defined by MIL-H-5440. The purpose being to connect a hose or tube to a standard MS33656, MS33514, or MIL-F-85421, or MIL-F-85720 fitting, and to provide the self-sealing feature on the hose or tube side of the connection.
Standard

Qualification of Hydraulic Tube Joints to Specified Flexure Fatigue Requirements
2019-01-03
WIP
ARP1258C
This SAE Aerospace Recommended Practice (ARP) establishes the method for qualification testing of tube joints and fitting attachments, using the flexure test method described in ARP1185. This qualification test method allows the determination of S-N type stress versus cycles or D-N type deflection versus cycles curves, as illustrated in AIR1418 as an alternate to flexure testing to a minimum endurance stress level.
Standard

Coupling Assembly, Threadless, Flexible, Fixed Cavity, Self-Bonding, Procurement Specification
2018-10-24
CURRENT
AS1650F
This SAE Aerospace Standard (AS) defines the requirements for a threadless, flexible, self-bonding coupling assembly which, when installed on machined fixed-cavity ferrules, provides a flexible connection for joining tubing and components in aircraft fuel, vent, or other systems. This assembled coupling, hereafter referred to as the assembly, is designed for use from -65 to +400 °F and at 125 psig nominal operating pressure. AS1650 was not designed for the new certification requirements for flammable leakage zones and fuel tanks for lightning protection and assembly redundancy. As such, their use and installation may require additional efforts and equipment to support new FAA CFR compliance. The AS7510 flexible coupling should be the preferred coupling for use in flammable leakage zones and fuel tanks that require service life and functionality for lightning protection and part redundancy.
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