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Items (212,033)

01/09/2025

This SAE Aerospace Information Report (AIR) discusses the forms that air may take in aircraft hydraulic systems. Further, the effects of the various air forms on system operation are addressed. Recommended system design to prevent air effects and maintenance procedures to prevent and remove air are provided. Nitrogen leakage from accumulators is also a source of gas in hydraulic systems and may compose a portion of the “air” in the hydraulic system. The term “air” in this report does not differentiate between a gas composed strictly of normal atmospheric air or one that includes a mixture of additional nitrogen as well. The discussions of the report apply equally with any proportions of atmospheric air and nitrogen in the system

A-6C1 Fluids and Contamination Control Committee

Actuators, Linear Mechanical, General Specification Guide

ARP5812 (Current)

01/09/2025

This SAE Aerospace Recommended Practice (ARP) establishes design, manufacturing performance and test requirements for linear mechanical actuators intended to be used for linear motion applications in response to manual or automatic power control system inputs. It is applicable, but not confined to, ball screws, sliding contact screws, roller screws, helical splines, rack and pinion assemblies, and skewed roller actuators. It is a reference for preparing detail specifications for mechanical actuators compatible and applicable to military or commercial aircraft systems

A-6B3 Electro-Mechanical Actuation Committee

LEDs and Aircraft Applications

ARP6253A (Current)

01/09/2025

This document presents minimum criteria for the design and installation of LED assemblies in aircraft. The use of "shall" in this specification expresses provisions that are binding. Nonmandatory provisions use the term "should

A-20C Interior Lighting

Aerospace - Evaluation of Particulate Contamination in Hydraulic Fluid - Membrane Procedure

ARP4285A (Current)

01/09/2025

This SAE Aerospace Recommended Practice (ARP) establishes a method for evaluating the particulate matter extracted from the working fluid of a hydraulic system or component using a membrane. The amount of particulate matter deposited on the membrane due to filtering a given quantity of fluid is visually compared against a standard membrane in order to provide an indication of the cleanliness level of the fluid

A-6C1 Fluids and Contamination Control Committee

Metallic Whiskers

AIR4129A (Current)

01/09/2025

This AIR presents an abbreviated review of the metallurgical phenomena known as whiskers. It is not all encompassing; rather, it is intended to introduce the design engineer to the technical issues of metallic whiskers, their formation, and the potentially dangerous problems they can cause

AMS B Finishes Processes and Fluids Committee

Superfinishing of HVOF Applied Tungsten Carbide Coatings

AMS2452 (Current)

01/09/2025

This specification covers requirements for the superfinishing of High Velocity Oxygen/Fuel (HVOF) applied tungsten carbide thermal spray coatings

AMS B Finishes Processes and Fluids Committee

INSERT, SCREW THREAD, HELICAL COIL, METRIC SERIES, FREE RUNNING, CRES, UNCOATED

MA3279D (Current)

01/09/2025

E-25 General Standards for Aerospace and Propulsion Systems

Method for Predicting Lateral Attenuation of Airplane Noise

AIR5662 (Current)

01/09/2025

This document describes analytical methods for calculating the attenuation of the level of the sound propagating from an airplane to locations on the ground and to the side of the flight path of an airplane during ground roll, climbout after liftoff, and landing operations. Both level and non-level ground scenarios may be modeled using these methods, however application is only directly applicable to terrain without significant undulations, which may cause multiple reflections and/or multiple shielding effects. This attenuation is termed lateral attenuation and is in excess of the attenuation from wave divergence and atmospheric absorption. The methods for calculating the lateral attenuation of the sound apply to: turbofan-powered transport-category airplanes with engines mounted at the rear of the fuselage (on the sides of the fuselage or in the center of the fuselage as well as on the sides) or under the wings propeller-driven transport-category or general-aviation airplanes

A-21 Aircraft Noise Measurement Aviation Emission Modeling

Engine Rotation and Cylinder Numbering

J824_202206 (Current)

06/29/2022

This SAE Standard was developed to provide a method for indicating the direction of engine rotation and numbering of engine cylinders. The document is intended for use in designing new engines to eliminate the differences which presently exist in industry

Engine Power Test Code Committee

Oil, Fluorescent Penetrant, Water Washable

AMS3156E (Current)12/15/2008

This specification has been declared "CANCELLED " by the Aerospace Materials Division, SAE, as of December 2008 and has been superseded by AMS2644. The requirements of the latest issue of AMS2644 shall be fulfilled whenever reference is made to the cancelled AMS3156. By this action, this document will remain listed in the Numerical Section of the Index of Aerospace Material Specifications, noting that it has been superseded by AMS2644

AMS K Non Destructive Methods and Processes Committee

Oil Fluorescent Penetrant, High Fluorescence, Solvent Soluble

AMS3157D (Current)01/08/2009

CANCELLATION NOTICE This specification has been declared "CANCELLED " by the Aerospace Materials Division, SAE, as of January 2009 and has been superseded by AMS2644. The requirements of the latest issue of AMS2644 shall be fulfilled whenever reference is made to the cancelled AMS3157. By this action, this document will remain listed in the Numerical Section of the Index of Aerospace Material Specifications, noting that it has been superseded by AMS2644

AMS K Non Destructive Methods and Processes Committee

Steel, Corrosion-Resistant, Bars, Wire, and Forgings, 10Cr - 12Ni - 2Mo - 1.45Al - 1.15Ti, Vacuum Induction Plus Vacuum Consumable Electrode Melted, Solution Heat Treated, Precipitation Hardenable

AMS5938B (Current)01/12/2013

This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, and forging stock

AMS F Corrosion and Heat Resistant Alloys Committee

Nickel, Corrosion and Heat-Resistant, Bars, Forgings, and Extrusions, Thoria Dispersion Strengthened, 2.2Th02, Stress-Relieved

AMS5890F (Current)08/03/2015

This specification covers thoria-dispersion-strengthened nickel powder metallurgy product in the form of bars, forgings,extrusions, and stock for forging or extruding

AMS F Corrosion and Heat Resistant Alloys Committee

Steel, Corrosion-Resistant (18-8) Bars, Wire and Forging Stock (Aircraft Quality

AMSS7720B (Current)

07/31/2013

This specification covers the requirements for compositions of corrosion-resistant (18-8) steel bars, rods, wire and forging stock

AMS F Corrosion and Heat Resistant Alloys Committee

Aluminum Alloy Bar, Rod, and Shapes, Extruded, 7075-T76 Improved Exfoliation Resistance

AMSQQA200/15B (Current)07/31/2013

This specification covers the specific requirements for aluminum alloy 7075-T76 bar, rod, and shapes produced by extrusion (See AMS-QQ-A-200/11 for specific requirements for 7075 extrusions in other tempers

AMS D Nonferrous Alloys Committee

Aluminum Alloy, Sheet and Plate, Alclad 4.5 Cu - 1.5 Mg - 0.60 Mn - (Alclad 2024-T86) Width Over 60

AMS4075 (Current)07/01/1981

AMS D Nonferrous Alloys Committee

Welding, Electron-Beam

AMS2681B (Current)

01/21/2022

This specification defines the procedures and requirements for joining metals and alloys using the electron-beam (EB) welding process

AMS B Finishes Processes and Fluids Committee

Steel, Corrosion- and Heat-Resistant, Welding Wire 15Cr - 30Ni - 1.2Mo - 2.2Ti - 0.25Al - 0.001B - 0.030V (0.01 - 0.03C) Vacuum Induction Melted, Environment Controlled Packaging

AMS5811E (Current)

11/18/2022

This specification covers a corrosion and heat resistant steel in the form of welding wire

AMS F Corrosion and Heat Resistant Alloys Committee

Alloy, Corrosion and Heat Resistant, Investment Castings 30Fe - 21Cr - 20Ni - 20Co - 3.0Mo - 2.5W - 1.0Cb - 0.15N As Cast

AMS5376H (Current)

05/14/2019

This specification covers a corrosion and heat-resistant iron alloy in the form of investment castings

AMS F Corrosion and Heat Resistant Alloys Committee

Aluminum Sheet, Laminated Edge Bonded

AMS4012G (Current)07/28/2014

This specification covers an aluminum or aluminum alloy in the form of sheet, laminated and edge bonded

AMS D Nonferrous Alloys Committee

Nitriding, Molten Salt Bath

AMS2755G (Current)08/06/2015

This specification covers the engineering requirements for producing a thin carbide-bearing nitride case on parts by means of a low-temperature, aerated, molten salt bath process, and the properties of the case

AMS B Finishes Processes and Fluids Committee

Nickel Alloy, Corrosion and Heat Resistant, Billets and Preforms 55ni 15cr 17co 5.0mo 3.5ti 4.0al 0.025b, Powder Metallurgy Product, Hot Isostatically Pressed

AMS5852D (Current)10/01/2001

This specification covers a corrosion and heat resistant nickel alloy powder-metallurgy product in the form of billets and preforms

AMS F Corrosion and Heat Resistant Alloys Committee

Steel, Corrosion- and Heat-Resistant, Bars, Forgings, and Mechanical Tubing 14.5Cr - 2.3Ni - 12.5Co - 4.0Mo - 0.60V - 0.03Cb(Nb) Carburizing, Premium Aircraft-Quality, Double Vacuum Melted

AMS5932C (Current)

11/18/2022

This specification covers a premium aircraft-quality corrosion and heat-resistant steel in the form of bars, forgings, mechanical tubing, and forging stock

AMS F Corrosion and Heat Resistant Alloys Committee

Steel, Bars, and Forgings 3.5Cr - 9.5Ni - 18Co - 1.1Mo (0.13 - 0.17C) Double Vacuum Melted, Normalized, Annealed

AMS6517B (Current)

10/10/2019

This specification covers a premium aircraft-quality alloy steel in the form of bars, forgings, and forging stock

AMS E Carbon and Low Alloy Steels Committee

Heat Treatment Austenitic Corrosion-Resistant Steel Parts

AMS2759/4D (Current)

04/28/2018

This specification, in conjunction with the general requirements for steel heat treatment covered in AMS2759, establishes the requirements for annealing of austenitic corrosion-resistant steel parts. Parts are defined in AMS2759. General ordering instructions are specified in AMS2759

AMS F Corrosion and Heat Resistant Alloys Committee

Adhesive, Acrylic Base, for Acrylic Plastic

AMSA8576A (Current)

06/29/2016

This specification covers acrylic-monomer base adhesives intended for use in bonding acrylic plastics

AMS P Polymeric Materials Committee

Cleaning Compound, Terpene Circuit Board Cleaner

AMS1539A (Current)

04/24/2018

This specification covers a terpene base solvent cleaner in the form of a liquid, which forms a transient emulsion with water

AMS J Aircraft Maintenance Chemicals and Materials Committee

Compound, Corrosion Preventive Soft Film, Thixotropic, Cold Application

AMS3077A (Current)

04/24/2018

This specification covers a ready-mixed thixotropic compound in the form of a stable film-forming compound suitable for application by brushing or spraying

AMS J Aircraft Maintenance Chemicals and Materials Committee

Nickel Alloy, Corrosion- and Heat-Resistant, Bars, Forgings, and Rings 72Ni - 15.5Cr - 0.95Cb(Nb) - 2.5Ti - 0.70Al - 7.0Fe 1800 °F (982 °C) Solution Heat Treated, Precipitation Hardenable

AMS5747E (Current)

11/18/2022

This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, and flash welded rings up to 4.00 inches, including (101.6 mm, including) in nominal diameter or least distance between parallel sides, and stock of any size for forging or flash welded rings (see 8.5

AMS F Corrosion and Heat Resistant Alloys Committee

Graphite Coating, Thin Lubricating Film Impingement Applied

AMS2525E (Current)10/10/2019

This specification covers a coating consisting of finely-powdered graphite in a heat-resistant inorganic binder

AMS B Finishes Processes and Fluids Committee

Advanced Composites Prepreg - Nominal 250 °F Cure - Carbon Fiber and Epoxy Resin, Unidirectional Tape

AMS3960A (Current)

08/11/2015

The purpose of this specification is to allow procurement of a defined material corresponding to the statistically derived material properties published in CMH-17 Volume II

AMS P17 Polymer Matrix Composites Committee

Tubing, Plastic, Electrical Insulation Irradiated Polyvinylidene Fluoride, Semi-Rigid, Heat-Shrinkable Marker Sleeving Grade Low Outgassing

AMS3593B (Current)

03/02/2017

This specification covers an irradiated, thermally-stabilized, flame-resistant, modified-polyvinylidene-fluoride plastic in the form of extra-thin-wall tubing

AE-8D Wire and Cable Committee

Paper, Recording, Heat Sensitive

AMSP22968A (Current)

07/06/2016

This specification presents the requirements for one type of a heat-sensitive recording paper, in roll form, that furnishes permanent marking or tracing on one side

AMS P Polymeric Materials Committee

Insulation, Electrical, Pasted-Mica

AMSI538A (Current)

07/06/2016

This specification covers pasted-mica electrical insulation for molded armature slot bases, commutator insulation, shells, heating elements, and other similar insulating purposes

AMS P Polymeric Materials Committee

Shims, Molded, Filled Resin Compound and Sheet Prepeg

AMSS83474B (Current)

07/06/2016

This specification covers the requirements for filled, resinous thermosetting compound and sheet pre-preg to fabricate shims for use during assembly of aircraft and marine components and parts

AMS P Polymeric Materials Committee

Phosphate Treatment Antichafing

AMS2481K (Current)01/08/2021

This specification covers the requirements for a manganese phosphate coating on ferrous alloys

AMS B Finishes Processes and Fluids Committee

Carbon Fiber Fabric Repair Prepreg, 120 °C (250 °F) Vacuum Curing Part 2 - Qualification Program for Fiber, Fabric, Carbon Prepreg, Film Adhesive and Non-Structural Glass Prepreg

AMS3970/2A (Current)12/06/2016

AMS3970/2 gives specific information about the qualification program for carbon fiber reinforced epoxy structural repair prepreg systems, applicable for 120 °C (250 °F) vacuum curing. The prepreg system may include an epoxy film adhesive to be applied in a co-curing process with the prepreg for joint and sandwich bonding. The need for a film adhesive shall be established during screening tests

AMS CACRC Commercial Aircraft Composite Repair Committee

Fluid, Reference for Testing AS5780 HPC Class (Polyol) Resistant Material (Also known as Eastman Reference Oil 300

AMS3085B (Current)

03/22/2024

This specification covers a neopentyl polyol ester fluid (see 8.2) with AS5780 HPC or MIL-PRF-23699 HTS Class performance

E-34 Propulsion Lubricants Committee

Carbon Fiber Fabric Repair Prepreg, 120 °C (250 °F) Vacuum Curing Part 5 - Purchasing Specification for Companion Non-Structural Glass Fiber Fabric Prepreg

AMS3970/5 (Current)12/05/2016

The PS, AMS3970/5, specifies the batch release and delivery requirements for the companion non-structural glass fiber fabric prepreg

AMS CACRC Commercial Aircraft Composite Repair Committee

Aluminum Alloy 7075, Bar, Rod, Wire, and Special Shapes; Rolled, Drawn, or Cold Finished

AMSQQA225/9A (Current)07/25/2014

This specification covers the specific requirements for 7075 aluminum alloy bar, rod, wire, and special shapes produced by rolling, drawing, or cold finishing

AMS D Nonferrous Alloys Committee

Tape and Sheet, Adhesive, Rubber and Cork Composition

AMST6841A (Current)07/06/2016

This specification covers one type of tape and sheet for use in the installation of windshields, panels, and windows in cabins and cockpits of aircraft

AMS P Polymeric Materials Committee

Aluminum Alloy, Extruded Profiles (7349-T76511) 8.1Zn - 1.7Cu - 2.2Mg - 0.16Zr Solution Heat Treated, Stress-Relieved, and Overaged

AMS4332A (Current)

04/28/2018

This specification covers an aluminum alloy procured in the form of extruded profiles (shapes) with cross-sections up to 0.750 inch (19.05 mm) (see 8.5

AMS D Nonferrous Alloys Committee

Advanced Composites Prepreg – Nominal 250 °F Cure – Glass Fiber and Epoxy Resin, 7781 Weave Fabric

AMS3915A (Current)

08/10/2015

This specification establishes the requirements for a nominal 250 °F cure epoxy preimpregnated 7781 glass fabric. The prepreg has a nominal fiber areal weight of 294 gsm, and nominal resin content of 38

AMS P17 Polymer Matrix Composites Committee

Titanium Alloy, Forgings 10V - 2Fe - 3Al Consumable Electrode Melted, Single-Step Solution Heat Treated and Aged 180 ksi (1241 MPa) Tensile Strength

AMS4983G (Current)

05/28/2019

This specification covers a titanium alloy in the form of forgings 1.00 inch (25.4 mm) and under in nominal cross-sectional thickness and of forging stock of any size

AMS G Titanium and Refractory Metals Committee

Nickel-Iron Alloy, Magnetic, Sheet and Strip 50Ni - 50Fe Annealed, Forming Grade

AMS7717E (Current)

05/29/2019

This specification covers a magnetically soft nickel-iron alloy in the form of sheet and strip

AMS E Carbon and Low Alloy Steels Committee

Nickel-Iron Alloy, Magnetic, Bars, Rods, Tubing, and Forgings 50Ni - 50Fe

AMS7718H (Current)

05/29/2019

This specification covers a magnetically soft nickel-iron alloy in the form of bars, rods, forgings, mechanical tubing, and forging stock

AMS E Carbon and Low Alloy Steels Committee

Cure Monitor, Electrical Methods

ARP1926 (Current)

06/07/2022

This document describes a standard method to collect and report dielectric data for the purpose of monitoring or studying the cure of composites

AMS P17 Polymer Matrix Composites Committee

Aircraft/Engine Fuel Pump Two Phase (Slugging Flow) Inlet Performance Test and Evaluation

ARP4028 (Current)

04/29/2020

This procedure is intended to apply to all engine or airframe mounted fuel pumps and controls when required by the applicable specification. The procedure recommends a recirculation system similar to ARP492 to control the fuel properties affecting the fluid and its ability to "release" fuel vapors and dissolved air and have these "re-entrained or dissolved" during the fluid recovery process back to the tank and the original starting conditions

AE-5B Aircraft and Engine Fuel and Lubricant Sys Components

Environmental Control Systems Life Cycle Cost

AIR1812B (Current)

02/07/2017

This report contains background information on life cycle cost elements and key ECS cost factors. Elements of life cycle costs are defined from initial design phases through operational use. Information on how ECS designs affect overall aircraft cost and information on primary factors affecting ECS costs are discussed. Key steps or efforts for comparing ECS designs on the basis of LCC are outlined. Brief descriptions of two computer programs for estimating LCC of total aircraft programs and their use to estimate ECS LCC, are included

AC-9 Aircraft Environmental Systems Committee

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