1、 MIL-DTL-32434 23 January 2013 DETAIL SPECIFICATION HOSE ASSEMBLY, POLYTETRAFLUOROETHYLENE, CONVOLUTED, HIGH TEMPERATURE, MEDIUM PRESSURE, GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specifica
2、tion contains the requirements for medium pressure, high temperature, convoluted polytetrafluoroethylene (PTFE) hose assemblies, reinforced with a corrosion-resistant steel (CRES) wire braid for use in fuel, lubricating oil, water-alcohol, hydraulics and pneumatic systems within the limits specified
3、 herein. 1.2 Classification. The hose assemblies are classified as follows (see 6.1): a. Class 1 - ALL CRES fittings for all sizes, operating temperature ranging from -65F to +450F. b. Class 2 - Combination of aluminum alloy and CRES fittings for sizes 8 and larger, operating temperature ranging fro
4、m -65F to +275F. 1.3 Application limitations. 1.3.1 Size -3/-4 reducer assembly. The size -3/-4 reducer assembly should not be used in aircraft hydraulic systems. 1.3.2 Pneumatic storage system. Pneumatic storage system application should not be used (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 General. T
5、he documents listed in this section are specified in sections 3, 4 and 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness
6、of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, and 5 of this specification, whether or not they are listed. AMSC N/A FSC 4720 Comments, suggestions, or questions on this document should be addressed to: DLA Land and Mari
7、time, Attn: VAI, P.O. Box 3990, Columbus, OH 43218-3990, or emailed to FluidFlowdla.mil. Since contact information can change you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.dla.mil INCH-POUND Provided by IHSNot for ResaleNo reproduct
8、ion or networking permitted without license from IHS-,-,-MIL-DTL-32434 2 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issue
9、s of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-A-8625 - Anodic Coatings, for Aluminum and Aluminum Alloys MIL-DTL-32435 - Hose, Polytetrafluoroethylene, Convoluted, 450, Medium Pressure MIL-DTL-27272 - Fittings, Polytetrafluoroethylene
10、Hose, High Temperature, Medium Pressure, General Specification for MIL-DTL-25579/1 - Hose Assembly Length Measurement for NAS 1760 and MS8000 Series Seal, (Globe Seal, or Radius Seal) to Flareless Fitting End Design. MIL-PRF-680 - Degreasing Solvent MIL-PRF-5606 - Hydraulic Fluids, Petroleum Base, A
11、ircraft, Missile, and Ordnance MIL-PRF-7808 - Lubricating Oil, Aircraft Turbine Engine, Synthetic Base MIL-PRF-83282 - Hydraulic Fluid, Fire Resistant, Synthetic Hydrocarbon Base, Metric, NATO Code Number H-537 MIL-PRF-87257 - Hydraulic Fluid, Fire Resistant; Low Temperature, Synthetic Hydrocarbon B
12、ase, Aircraft and Missile DEPARTMENT OF DEFENSE STANDARDS MS33786 - Fitting Installation, Flared Tube and Hose, Swivel (ASG) (See supplement 1 for list of specification sheets.) (Copies of these documents are available online at https:/assist.dla.mil/quicksearch/ or from the Standardization Document
13、 Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.
14、 AEROSPACE INDUSTRIES ASSOCIATION (AIA) NAS1760 - Fitting End, Flareless Acorn, Standard Dimensions for (Copies of this document is available online at http:/www.aia-aerospace.org/ or from the Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3901) ASTM INTERNA
15、TIONAL ASTM A262 - Steels, Detecting Susceptibility to Intergranular Attack in Austenitic Stainless ASTM A276 - Standard Specification for Stainless Steel Bars and Shapes ASTM A493 - Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging ASTM A313/A313M - Sta
16、ndard Specification for Stainless Steel Spring Wire ASTM A580/A580M - Steel, Wire, Stainless Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434 3 ASTM B210 - Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes ASTM
17、D471 - Rubber Property - Effect of Liquids (Copies of these documents are available online at http:/www.astm.org or from the ASTM International, P.O. Box C700, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) ISO 17025 - General requireme
18、nts for the competence of testing and calibration laboratories (Copies of these documents are available online at http:/www.ansi.org or from the ANSI Customer Service Department, 25 W. 43rdStreet, 4thFloor, New York, NY 10036.) NCSL INTERNATIONAL NCSL Z540.3 - Requirements for the Calibration of Mea
19、suring and Test Equipment (Copies of this document is available online at http:/www.ncsli.org or from NCSL International 2995 Wilderness Place, Suite 107 Boulder, Colorado 80301-5404) SAE INTERNATIONAL SAE-AMS-QQ-A-200/8 - Aluminum Alloy 6061, Bar, Rod, Shapes, Tube, and Wire, Extruded SAE-AMS-QQ-A-
20、225/4 - Aluminum Alloy, 2014, Bar, Rod, Wire, and Special Shapes; Rolled Drawn, or Cold Finished SAE-AMS-QQ-A-225/6 - Aluminum Alloy, 2024, Bar, Rod, and Wire; Rolled, Drawn or Cold Finished SAE-AMS-WW-T-700/4 - Tube, Aluminum Alloy, Drawn, Seamless, 5052 SAE-AMS-WW-T-700/6 - Tube, Aluminum Alloy, D
21、rawn, Seamless, 6061 SAE-AMS-A-22771 - Aluminum Alloy Forgings, Heat Treated SAE-AMS2700 - Passivation Treatment for Corrosion-Resistant Steel SAE-AMS4082 - Aluminum Alloy, Seamless Drawn Tubing 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061-T6) Solution and Precipitation Heat Treated - UNS A96061 SAE-AMS41
22、15 - Aluminum Alloy, Rolled or Cold-Finished, Bars, Rods, Wire, and Flash Welded Rings Annealed 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061-0) SAE-AMS4117 - Aluminum Alloy, Rolled or Cold Finished Bars, Rods, and Wire and Flash Welded Rings 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061; -T6, -T651) Solution and
23、 Precipitation Heat Treated - UNS A96061 SAE-AMS4120 - Aluminum Alloy, Rolled or Cold Finished Bars, Rods, and Wire 4.4Cu - 1.5Mg - 0.60Mn (2024) Solution Heat Treated and Naturally Aged (T4) Solution Heat Treated, Cold Worked, and Naturally Aged (T351) - UNS A92024 SAE-AMS4127 - Aluminum Alloy Forg
24、ings and Rolled or Forged Rings 1.0 Mg - 0.6 Si - 0.28 Cu - 0.20 Cr (6061-T6), Solution and Precipitation Heat Treated SAE-AMS5557 - Steel Tubing, Seamless and Welded, Corrosion and Heat Resistant, 18.5 Cr - 10.5 Ni - 0.40 Ti (SAE 30321) Hydraulic, Solution Heat Treated Provided by IHSNot for Resale
25、No reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434 4 SAE-AMS5565 - Steel, Corrosion Resistant, Welded Tubing 19Cr - 9.5Ni (SAE 30304) Solution Heat Treated SAE-AMS5566 - Steel Tubing, Seamless or Welded, Corrosion Resistant, 19 Cr - 10 Ni (SAE 30304) High Pressure Hyd
26、raulic, Cold Drawn SAE-AMS5567 - Steel Tubing, Seamless or Welded, Corrosion Resistant 19 Cr - 10 Ni (SAE 30304) Hydraulic, Annealed SAE-AMS5639 - Steel, Corrosion Resistant, Bars, Wire, Forgings, Tubing, and Rings 19Cr - 9.5NI, Solution Heat Treated SAE-AMS5643 - Steel Bars, Forgings, Tubing and Ri
27、ngs, Corrosion Resistant 16.5 Cr - 4.0 Ni - 0.30(Cb + Ta) - 4.0 Cu. SAE-AMS5645 - Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Tubing, and Rings 18Cr - 10Ni - 0.40Ti (SAE 30321) SAE-AMS5647 - Steel, Corrosion Resistant, Bars, Wire, Forgings, Tubing, and Rings 19Cr - 10NI, Solution Heat
28、 Treated SAE-AMS5689 - Steel Wire, Corrosion and Heat Resistant, 18 Cr - 9.5 Ni - 0.40 Ti (SAE 30321) Solution Heat Treated SAE-AMS5697 - Steel, Corrosion Resistant, Wire19Cr - 9.5NI, Solution Heat Treated SAE-AMS5743 - Steel, Corrosion and Heat Resistant, Bars and Forgings 15.5 Cr - 4.5 Ni - 2.9 Mo
29、 - 0.10 Ni Solution Heat Treated, Sub-Zero Cooled, Equalized and Over-Tempered. SAE-ARP908 - Torque Requirements, Installation and Qualification Test, Hose and Tube Fittings SAE-AS611 - Polytetrafluoroethylene Hose Assembly, Cleaning Methods SAE-AS1055 - Fire Testing of Flexible Hose, Tube Assemblie
30、s, Coils, Fittings, and Similar System Components SAE-AS1946 - Hose Assembly, Polytetrafluoroethylene, Metallic Reinforced, Up to 1500 psi and 450 Degrees F, Hydraulic and Pneumatic SAE-AS2078 - Test Methods, Hose Assemblies, Polytetrafluoroethylene (PTFE) SAE-AS4375 - Fitting End, Flareless, Design
31、 Standard SAE-AS4395 - Fitting End-Flared Tube Connection, Design Standard. SAE-AS5685 - Steel, Corrosion Resistant, Safety Wire, 18Cr - 11.5Ni (UNS S30500) Solution Heat Treated, Cold Finished SAE-AS8879 - Screw Threads - UNJ Profile, Inch SAE-AS33514 - Fitting End, Standard Dimensions for Flareles
32、s Tube Connection and Gasket Seal (Copies of these documents are available online at www.sae.org from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, and Tel: 877-606-7323 inside USA and Canada or 724-776-4970 outside USA, email at CustomerServicesae.org.) 2.4 Order of preceden
33、ce. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein (except for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and
34、regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Specification sheets. The individual item requirements shall be as specified herein and also in accordance with the applicable specification sheets. In the event of a conflict between the requirements of this specificatio
35、n and the specification sheet, the latter shall govern. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32434 5 3.2 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.5. 3.3 M
36、aterials. Materials used shall be as specified herein. Materials used that are not specifically specified herein shall be of a quality that will enable the hose assembly to meet the requirements specified herein. 3.3.1 Recycled, recovered, and environmentally preferable materials. Recycled, recovere
37、d, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.3.2 Metals. All metals used herein shall conform to the requir
38、ements in table I. Metals used for end fittings (see 3.5.2) shall be corrosion-resistant steel or an aluminum alloy that has been treated to resist corrosion due to fuels, salt spray, and atmospheric conditions encountered by the hose assembly during storage and normal service use. TABLE I. Requirem
39、ents for metals. Metal Form Specification Type Aluminum alloy Bars SAE-AMS-QQ-A-200/8 6061-T6 6061-T651 SAE-AMS4117 Forgings SAE-AMS4127 6061-T6 SAE-AMS-A-22771 7075-T73 Seamless tubing SAE-AMS-WW-T-700/4 5052, type I ASTM B210 6061-T6 SAE-AMS4082 SAE-AMS-WW-T-700/6 Wire SAE-AMS4115 or 4117 6061 SAE
40、-AMS-QQ-A-225/4 2014 SAE-AMS-QQ-A-225/6 or SAE-AMS4120 2024-T4 or 2024-T351 Corrosion-resistant steel Bars UNS S30400 SAE-AMS5645 SAE 30321; UNS S32100 SAE-AMS5647 304L; UNS S30403 SAE-AMS5643 17-4PH SAE-AMS5743 AM-355 Tubing SAE-AMS5566 Type 1 or 2 SAE-AMS5557 Type 1 or 2 SAE-AMS5565 SAE 30304 SAE-
41、AMS5567 SAE 30304 Wire SAE-AMS5689SAE 30321; UNS S32100 SAE-AMS5697 SAE 30304; UNS S30400 ASTM A313/A313M Type 302, 304, 305, or 321 ASTM A493 or SAE-AS5685 Type 305, condition A ASTM A580/A580M Type 304, condition A Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
42、e from IHS-,-,-MIL-DTL-32434 6 3.4 Finish. The following requirements are applicable to permanent and field attachable fittings. 3.4.1 Aluminum parts. Unless otherwise specified, aluminum parts shall be finished in accordance with MIL-A-8625, type II, class 2. Flareless parts shall be dyed yellow an
43、d flared parts shall be dyed blue. 3.4.2 Corrosion-resistant steel parts. Unless otherwise specified, corrosion-resistant steel parts shall be passivated in accordance with SAE-AMS2700. Following passivation, all parts shall be thoroughly rinsed in water and dried. 3.5 Design and construction. The h
44、ose assembly shall consist of a seamless convoluted polytetrafluoroethylene inner tube, reinforced with corrosion resistant steel reinforcement wires and coupled with corrosion resistant (stainless steel) end fittings (class 1) or aluminum alloy and corrosion resistant end fittings (class 2) suitabl
45、e for the intended installation. If assemblies with field-attachable fittings are used, the fittings shall comply with MIL-DTL-27272, the hose shall comply with MIL-DTL-32435 and the assemblies shall comply with the requirements of this specification and MIL-DTL-32434/1 through MIL-DTL-32434/5, (see
46、 supplement 1) as applicable. Assemblies with permanent fittings shall conform to this specification and MIL-DTL-32434/6 through MIL-DTL-32434/9, as applicable. Standard hose assemblies shall have flared fittings to mate with SAE-AS4395 and flareless fittings shall be in accordance with MIL-DTL-2557
47、9/1 for NAS1760, or globe or radius seal design, to mate with SAE-AS33514 or SAE-AS4375 fitting end for flareless tube connections. Hose assembly lengths shall be determined in accordance with MIL-DTL-25579/1. The hose assemblies shall withstand the strain and vibrations encountered during shipment,
48、 storage, installation, and service, within the limits specified herein. 3.5.1 Inner tube. The inner tube shall be seamless extrusion of virgin polytetrafluoroethylene resin. The hose inner tube shall conform to all of the requirements in MIL-DTL-32435 for the bulk hose to be assembled with MIL-DTL-
49、27272 hose connector fitting. For permanently attached fitting hose assemblies the hose should meet the requirements of MIL-DTL-32435. 3.5.1.1 Reinforcement. The reinforcement shall consist of corrosion resistant steel wires in accordance with the applicable specification listed in table I Hose under -16Z shall have a single layer of braid and hose -16Z and above shall have two layers of braid. The letter “Z” following the dash size s
