1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2017 SAE InternationalAll rights reserved. No part of this publi
3、cation may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on thisTechnical Report, please visithttp:/standards.sae.org/AS5951DAEROSPACESTANDARDAS5951 REV. DIssued 2004-09Revised 2017-02Superseding AS5951CHose Assembly, Polytet
5、rafluoroethylene, Para-Aramid Reinforced,5080 psi (35000 kPa), 275 F (135 C), Aircraft Hydraulic SystemsRATIONALEChanged layline requirement, added hose assembly part standards from AS5951SUP1, corrected wire material title, and clarified Sampling Test requirements for burst samples.1. SCOPEThis doc
6、ument defines the requirements for polytetrafluoroethylene (PTFE) lined, para-aramid reinforced, hose assemblies suitable for use in 275 F (135 C), 5080 psi (35000 kPa) aircraft hydraulic systems.NOTE: The SI metric units defined herein are soft conversion units.2. REFERENCES2.1 Applicable Documents
7、The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this docum
8、ent and references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.2.1.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 1509
9、6-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.AMS2486 Conversion Coating of Titanium Alloys Fluoride-Phosphate TypeAMS2487 Anodic Treatment of Titanium and Titanium Alloys Solution pH 12.4 MaximumAMS2700 Passivation of Corrosion Resistant SteelsAMS49
10、28 Titanium Alloy Bars, Wire, Forgings, Rings, and Drawn Shapes 6Al - 4V AnnealedAMS4965 Titanium Alloy, Bars, Wire, Forgings, and Rings 6.0Al 4.0V Solution Heat Treated and AgedAMS5637 Steel, Corrosion Resistant, Bars and Wire 18Cr - 9.0Ni (SAE 30302) Solution Heat Treated, Cold Drawn and Stress Re
11、lieved 125 ksi (862 MPa) Tensile StrengthSAE INTERNATIONAL AS5951D Page 2 of 24AMS5639 Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing, and Rings 19Cr - 10Ni Solution Heat TreatedAMS5645 Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Tubing, and Rings 18Cr - 10Ni - 0.40Ti (321)
12、Solution Heat TreatedAMS5646 Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, Tubing, and Rings 18Cr - 11Ni - 0.60Cb(Nb) (347) Solution Heat TreatedAMS5647 Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing, and Rings 19Cr - 9.5Ni Solution Heat TreatedAMS5656 Steel, Corrosion Resista
13、nt, Bars, Wire, Forgings, Extrusions, and Rings 9.0Mn - 20Cr - 6.5Ni - 0.27N Solution Heat TreatedAMS-QQ-P-35 Passivation Treatments for Corrosion-Resistant SteelAS478 Identification Marking MethodsARP603 Impulse Testing of Hydraulic Hose, Tubing, and Fittings AssembliesAS611 Hose Assembly and Tubin
14、g, Polytetrafluoroethylene, Cleaning Methods forARP908 Torque Requirements, Installation and Qualification Test, Hose and Tube FittingAS1073 Sleeve Hose Assembly, Heat ShrinkableAIR1228 Standard Impulse Machine Equipment and OperationAS1241 Fire Resistant Phosphate Ester Hydraulic Fluid for Aircraft
15、ARP1835 Preparation for Delivery, General Requirements for Hose AssembliesAS2078 Test Methods, Hose Assemblies, Polytetrafluoroethylene (PTFE)AS4207 Fitting End, External Thread, Beam Seal, Design StandardARP4266 Hole Contour, Fluid Passage, Tube FittingAS4458 Fitting End, Flareless, Blunt Nose, Des
16、ign StandardAS5272 Lubricant, Solid Film, Heat Cured, Corrosion Inhibiting, Procurement SpecificationAS5685 Steel, Corrosion Resistant, Safety Wire, 18Cr - 11.5Ni (UNS S30500) Solution Heat Treated, Cold FinishedAS5827 Fitting End, Flareless, Extra Fine Thread, Design StandardAS7003 Nadcap Program R
17、equirementsAS7112 National Aerospace and Defense Contractors Accreditation Program Requirements for Fluid System ComponentsAS8879 Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor DiameterAS85720 Fittings, Tube, Fluid Systems, Separable, High Pressure Dynamic Beam Seal, 5
18、000/8000 psi, General Specification ForAS85720/1 Fittings, Tube, Fluid Systems, Separable, High Pressure, Dynamic Beam Seal, Design Standard for Male EndSAE INTERNATIONAL AS5951D Page 3 of 242.1.2 ASME PublicationsAvailable from ASME, P.O. Box 2900, 22 Law Drive, Fairfield, NJ 07007-2900, Tel: 800-8
19、43-2763 (U.S./Canada), 001-800-843-2763 (Mexico), 973-882-1170 (outside North America), www.asme.org.ASME B46.1 Surface TextureASME Y14.100 Engineering Drawing Practices2.1.3 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, T
20、el: 610-832-9585, www.astm.org.ASTM A262 Detecting Susceptibility to Intergranular Attack on Stainless SteelASTM B348 Specification for Titanium and Titanium Alloy Bars and Billets2.1.4 NAS PublicationsAvailable from Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA
21、22209-3928, Tel: 703-358-1000, www.aia-aerospace.org.NAS 847 Caps and Plugs, Protective, Dust and Moisture SealNAS 1760 Fitting End, Flareless Acorn, Standard Dimensions for2.1.5 PRI PublicationsAvailable from Performance Review Institute, 161 Thorn Hill Road, Warrendale, PA 15086-7527, Tel: 724-772
22、-1616, www.pri-network.org.PD2001 Qualified Product Management Council Procedures for Qualified Products GroupPD2101 Aerospace Quality Assurance, Product Standard, Qualification Procedures, Fluid Systems2.1.6 RTCA PublicationsAvailable from RTCA, Inc., 1150 18th Street, NW, Suite 910, Washington, DC
23、 20036, Tel: 202-833-9339, www.rtca.org.DO-160 Environmental Conditions and Test Procedure for Airborne Equipment2.1.7 U.S. Government PublicationsCopies of these documents are available online at http:/quicksearch.dla.mil.MIL-PRF-680 Degreasing SolventMIL-PRF-5606 Hydraulic Fluid, Petroleum Base, A
24、ircraft, Missile, and OrdinanceMIL-HDBK-831 Preparation of Test ReportsMIL-PRF-83282 Hydraulic Fluid, Fire-Resistant, Synthetic, Hydrocarbon Base, AircraftMIL-PRF-87257 Hydraulic Fluid, Fire Resistant, Low Temperature, Synthetic Hydrocarbon Base, Aircraft and MissileSAE INTERNATIONAL AS5951D Page 4
25、of 242.2 Related Publications The following publications are provided for information purposes only and are not a required part of this SAE Aerospace Technical Report.2.2.1 Hose Assembly Parts Standards Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606
26、-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.The hose assembly standards applicable to this procurement standard include:CLASS 5080:AS5952 Hose Assembly, Polytetrafluoroethylene, Para-Aramid Reinforced, 275F, 5080 psi, Flareless, TitaniumFittings, Straight to StraightA
27、S5953 Hose Assembly, Polytetrafluoroethylene, Para-Aramid Reinforced, 275F, 5080 psi, Flareless, TitaniumFittings, Straight to 45AS5954 Hose Assembly, Polytetrafluoroethylene, Para-Aramid Reinforced, 275F, 5080 psi, Flareless, TitaniumFittings, Straight to 90AS5955 Hose Assembly, Polytetrafluoroethy
28、lene, Para-Aramid Reinforced, 275F, 5080 psi, Flareless, TitaniumFittings, 45 to 45AS5956 Hose Assembly, Polytetrafluoroethylene, Para-Aramid Reinforced, 275F, 5080 psi, Flareless, TitaniumFittings, 45 to 90CLASS 4000:AS6013 Hose Assembly, Polytetrafluoroethylene, Para-Aramid Reinforced, 275F, 4000
29、Max Psi, Flareless,Titanium Fittings, Straight to StraightAS6014 Hose Assembly, Polytetrafluoroethylene, Para-Aramid Reinforced, 275F, 4000 Max Psi, Flareless,Titanium Fittings, Straight to 45AS6015 Hose Assembly, Polytetrafluoroethylene, Para-Aramid Reinforced, 275F, 4000 Max Psi, Flareless,Titaniu
30、m Fittings, Straight to 903. TECHNICAL REQUIREMENTS3.1 QualificationHose assemblies supplied in accordance with this document shall be representative of products which have been subjected to and which have successfully passed the qualification tests specified in this standard.3.1.1 Manufacturer Qual
31、ificationA manufacturer producing a product in conformance to this procurement specification shall be accredited in accordance with the requirements of PD2101, AS7003 and AS7112, and shall be listed in a Performance Review Institute (PRI) Qualified Manufacturers List (QML).3.1.2 Product Qualificatio
32、nAll products shall conform to the requirements of this procurement specification and shall be approved in accordance with the requirements of PD2001 and PD2101 for listing in a Performance Review Institute (PRI) Qualified Parts List (QPL).When this performance specification is specified on a design
33、 activity controlled drawing, the approved source of supply shall be defined by the design activity.SAE INTERNATIONAL AS5951D Page 5 of 243.2 MaterialsThe hose assembly materials shall be uniform in quality, free from defects, consistent with good manufacturing practice, and shall conform to applica
34、ble specifications and the requirements specified herein.3.2.1 MetalsMetals used in the fittings shall be titanium and corrosion-resistant steel and shall conform to the following specifications:3.2.1.1 Bars and ForgingsAMS4928 6Al-4V Titanium - AnnealedAMS4965 6Al-4V Titanium - Solution TreatedAMS5
35、637 302 CRESAMS5639 304 CRESAMS5645 321 CRESAMS5646 347 CRESAMS5647 304L CRESAMS5656 21-6-9 CRESASTM B348 Grade 2 - Titanium Alloy3.2.2 WireAS5685 305 CRES3.2.3 ReinforcementPara-aramid textile treated, as required, and applied to the hose with an outer polyester, polybenzimidazol/para-aramid blend,
36、 or air textured nylon braid cover to meet all the requirements herein.3.3 Design and ConstructionThe hose assembly shall consist of a seamless PTFE inner tube, para-aramid reinforcement, polyester, polybenzimidazol/para-aramid blend, or air textured nylon outer braid cover and titanium end fittings
37、, which may have corrosion resistant sockets/collars as required, to meet the construction and performance requirements of this document.3.3.1 Inner TubeThe inner tube shall be of a seamless construction of virgin PTFE resin of uniform gage. It shall have a smooth bore and shall be free from pitting
38、 or projections on the inner surface. Additives may be included in the compound from which thetube is extruded.3.3.2 ReinforcementThe reinforcement shall be a wrapped or braided para-aramid yarn. The reinforcement shall be arranged over the inner tube to provide sufficient strength and protection to
39、 ensure conformance with the requirements specified herein. Broken reinforcement cords shall be cause for rejection. The reinforcement shall be a color different than the cover material.3.3.3 Fluid BarrierA full coverage fluid barrier shall be used between the reinforcement and cover.SAE INTERNATION
40、AL AS5951D Page 6 of 243.3.4 CoverThe cover shall be a braided polyester, polybenzimidazol/para-aramid blend, or air textured nylon. The cover braid shall provide 100% coverage to protect the para-aramid reinforcement from exposure to ultraviolet light, ozone, and abrasion.The cover material may be
41、black in color, but shall be sufficiently treated to protect against ultraviolet light. There shall be two continuous lay lines, of a contrasting color, approximately 180 apart. Optionally, the lay lines may be interrupted by suppliers name, operating pressure, etc.3.3.5 FittingsAll fittings shall b
42、e permanently attached. Standard hose assemblies shall have flareless fittings according to NAS 1760, AS4458 or equivalent to mate with AS5827, or dynamic beam seal fittings to mate with male end per AS85720/1 or AS4207.Anti-torque hexes or flats shall be provided on fittings and shall fit standard
43、wrench openings. All internal surfaces of fitting nuts and retainer wire, when used, shall be dry filmed with dry film per AS5272. Dry film on external surfaces and overspray is not cause for rejection.3.3.5.1 Straight and Standard Shaped FittingsStraight fittings shall be machined and standard shap
44、es shall be forged or machined. The hose assembly fitting material shall be titanium, except the collar and swivel nut retaining wire may be corrosion resistant steel (CRES). For elbow fittings, the inside corner shall be a radius in accordance with ARP4266.3.3.5.2 End Fitting Collars (Sockets)All e
45、nd fitting collars (sockets), crimped or swaged, and fabricated from Type 304 stainless steel are required to be capable of passing an embrittlement test as specified in ASTM A262 Practice E, prior to assembly to the nipple and crimp or swaging operation. Embrittlement tests are not required on sock
46、ets fabricated from stabilized austenitic steel (304L, 321, or 347) and titanium. Titanium collars are per ASTM B348 - Grade 2.3.3.5.3 Finish3.3.5.3.1 Corrosion Resistant Steel PartsUnless otherwise specified, corrosion resistant steel parts shall be passivated in accordance with AMS2700 or AMS-QQ-P
47、-35.3.3.5.3.2 Titanium Alloy PartsTitanium alloy parts shall be fluoride phosphate coated per AMS2486 or titanium anodized per AMS2487, unless otherwise specified.3.3.6 DimensionsThe hose assembly dimensions, except for length, shall be as specified in Figure 1 and Table 1.3.3.7 Hose WeightHose cons
48、isting of inner tube, reinforcement, fluid barrier and outer cover as outlined in 3.3.1 through 3.3.4, shall not exceed the maximum hose weights specified in Table 2.SAE INTERNATIONAL AS5951D Page 7 of 24Figure 1 - Hose and fitting dimensionsTable 1Table 1A - Hose and fitting dimensions as shown in
49、Figure 1 - U.S. inch-pound unitsHose SizeRigid TubeOD(Ref)FittingODAMax /1/FittingIDB/2/ (Ref)SocketLengthCMaxHose IDDMinHose ODEMinHose ODEMaxUnbraidedPTFE WallThicknessSpherical Ball Sizefor DeterminingMinimum Hose Assy ID/3/T Straight ElbowRef Fittings Fittings04 .250 .78 .133 1.53 .212 .420 .590 .042 .120 .11306 .375 .90 .226 1.72 .298 .525 .760 .045 .203 .19208 .500 1.08 .330 1.94 .391 .750 .925 .045 .297 .28010 .6
