1、AMSC N/A FSC 4720 INCH-POUND MIL-PRF-7061D 19 August 2013 SUPERSEDING MIL-PRF-7061C 15 May 1998 PERFORMANCE SPECIFICATION HOSE, ELASTOMERIC, AIRCRAFT, SELF-SEALING, AROMATIC FUEL This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope.
2、This specification covers requirements for one grade of self-sealing, elastomeric fuel hose for aircraft use. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other s
3、ections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specificatio
4、n, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications and standards. The following specifications and standards 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 co
5、ntract. Comments, suggestions, or questions on this document should be addressed to Oklahoma City Air Logistics Center/ENSDAA, 3001 Staff Drive, Suite 1AB81A, Tinker AFB, OK 73145 or emailed to af71tinker.af.mil. Since contact information can change, you may want to verify the currency of this addre
6、ss information using the ASSIST Online database at https:/assist.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-7061D 2 FEDERAL STANDARDS FED-STD-595 - Colors Used in Government Procurement FED-STD-601 - Rubber: Sampling and Testin
7、g FED-STD-791 - Testing Method of Lubricants, Liquid Fuels, and Related Products DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-DTL-5624 - Turbine Fuel, Aviation, Grades JP-4 and JP-5 MIL-DTL-83133 - Turbine Fuel, Aviation, Kerosene Type, JP-8 (NATO F-34), NATO F-35, and JP-8+100 (NATO F-37) DEPARTMENT OF
8、 DEFENSE STANDARDS MS28753 - Fitting End, Self-Sealing Fuel Hose, Swivel Detachable, Flanged, Straight MS28754 - Fitting End, Self-Sealing Fuel Hose, Swivel, Detachable, Flanged, 45 DEG MS28755 - Fitting End, Self-Sealing Fuel Hose, Swivel, Detachable, Flanged, 90 DEG (Copies of these documents are
9、available online at http:/quicksearch.dla.mil/ or from the Standardization Document 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 specif
10、ied, the issues of these documents are those cited in the solicitation or contract. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM-D380 - Hose Rubber ASTM-D412 - Rubber, Vulcanized and Thermoplastic Elastomers Tension ASTM-D471 - Rubber Property-Effects of Liquids (ASTM documents may be obta
11、ined at www.astm.org or addressed to the American Society for Testing and Material, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) SAE-AS1933 - Hose Containing Age-Sensitive Elastomeric Material, Age Controls For Provided by IHSNot for ResaleNo reprod
12、uction or networking permitted without license from IHS-,-,-MIL-PRF-7061D 3 SAE-AS5131 - Tube End Beaded, Design Standard SAE-AS5132 - Fitting End Hose Connection, Design Standard SAE-AS5183 - Fitting, Adapter, Hose to Straight Pipe (SAE documents may be obtained at http:/www.sae.org or addressed to
13、 Society of Automotive Engineers, Inc., 400 Commonwealth Drive, Warrendale, PA 15096.) AEROSPACE INDUSTRIES ASSOCIATION (AIA) NAS1925 - Clamp, Hose (DoD-adopted) (AIA NAS documents may be obtained at http:/www.aia-aerospace.org/ or addressed to Aerospace Industries Association, 1000 Wilson Boulevard
14、, Suite 1700, Arlington, VA 22209-3928.) 2.4 Order of precedence. 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, the text of this document takes precedence. Nothing in this document, however, supersedes
15、applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2. 3.2 Recycled, recovered, or environmentally preferable materials. Recycled, reco
16、vered, 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 Materials. Hose material shall be uniform in quality an
17、d free from defects. 3.3.1 Elastomeric tube. The portion of the hose that is in contact with the fluids being transported shall be an elastomeric tube (see figure 1) of seamless construction and uniform gauge (see 6.3). The internal surface of the elastomeric tube shall have a smooth bore and shall
18、be free from pitting, dirt, foreign material, and tooling lubricants. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-7061D 4 Figure 1. Hose cross-section 3.3.2 Reinforcing material. Hose may consist of a layer or layers of reinforcing materi
19、al to meet the performance requirements specified herein. 3.3.3 External surface. The external surface of the hose shall be abrasion-resistant, mildew inhibiting, and free from pitting. 3.4. Interface. The hose shall be constructed as to permit ready assembly with standard hose fitting connection en
20、ds, tubing ends, pipe threaded adapters, and hose clamps conforming to MS28753, MS28754, MS28755, SAE-AS5132, SAE-AS5131, SAE-AS5183, and NAS1925. 3.4.1 Dimensions. The hose code shall be identified in the solicitation (see 6.2). The inside diameter (ID) and outside diameter (OD) of the hose shall b
21、e as specified in table I. Table I. Hose Requirements. Size Code ID (inches) OD (inches) Burst pressure Minimum bend radius Collapse vacuum (psi) (in.) (in.Hg) 062 0.625 0.016 1.531 0.062 400 4.0 20 075 0.750 .031 1.625 0.062 4.5 100 1.000 .031 1.891 0.062 5.5 125 1.250 .031 2.219 0.062 250 8.0 12 1
22、50 1.500 .031 2.438 0.062 9.0 6 200 2.000 .031 2.938 0.062 150 12.5 4 250 2.500 .031 No requirement No requirement 2 300 3.000 .031 No requirement No requirement 3.4.2 Fluids. Hose shall be capable of use with hydrocarbon-based fuels. Provided by IHSNot for ResaleNo reproduction or networking permit
23、ted without license from IHS-,-,-MIL-PRF-7061D 5 3.5 Performance. 3.5.1 Proof pressure. Hose shall not leak or blister when exposed to either an aerostatic proof pressure of 100 pounds per square inch (psi) or a hydrostatic proof pressure of 120 psi. 3.5.2 Reduction in ID. The ID of the hose shall n
24、ot decrease to less than 84 percent of the minimum ID specified in Table I when exposed to hydrocarbon based fuel. 3.5.3 Elastomeric tube properties. 3.5.3.1 Fuel resistance. When exposed to hydrocarbon-based fuel, the elastomeric tube shall have a minimum tensile strength of 400 psi. The elongation
25、 shall be minimum of 150 percent, the volume increase shall be a maximum of 90 percent. 3.5.3.2 Gum extraction. If a gum sealant is used, there shall be a maximum of 6000 milligrams of gum residue (10 milligrams of insoluble residue) per 100 milliliters of fuel extract. There shall be no sulfur or c
26、orrosive sulfur compounds in the fuel extract. 3.5.4 Adhesion. The original adhesion between the elastomeric tube and reinforcing material shall be at least 12 pounds per inch (6 pounds per inch after aging in Type II fuel). If a cover is used, the original adhesion between the reinforcing material
27、and the cover shall be at least 8 pounds per inch (4 pounds per inch after aging in Type II fuel). 3.5.5 Cover properties. (If a cover is used). 3.5.5.1 Tensile strength. The tensile strength of the cover shall be minimum of 1,000 psi, and the hose cover elongation shall be minimum of 200 percent. 3
28、.5.5.2 Fuel resistance. When exposed to hydrocarbon based fuels, the hose cover shall have volume increase of less than 90 percent. 3.5.6 Vacuum collapse. The hose shall not collapse when exposed to an internal vacuum as shown in Table I. 3.5.7 Performance of hose when assembled. The hose, when asse
29、mbled with fittings or adapters conforming to those specified in paragraphs 3.4 above, shall meet the following requirements. 3.5.7.1 Hydrostatic burst pressure. The hose shall not burst or cause the fittings or adapters to loosen or separate from the hose, and there shall be no external leakage fro
30、m hose to fitting or adapter interface, when subjected to the hydrostatic burst pressure specified in Table I. 3.5.7.2 Flexing. The hose shall withstand flexing a total of 0.250 inches (0.125 inches each side of center) at a rate of 1725 cycles per second. There shall be no leaking, tube separation,
31、 or progressive cracking of the hose. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-7061D 6 3.5.7.3 Electrical resistively. When the hose is mated to adapters or fittings to form a hose assembly, the electrical resistivity of the hose assem
32、bly shall not exceed one ohm from adapter to adapter. 3.5.8 Gunfire. The hose shall be capable of withstanding gunfire up to and including 50 caliber armor piercing ammunition. 3.5.8.1 Grade JP-4 fuel. The hose shall completely seal within 2 minutes when punctured by gunfire at an ambient temperatur
33、e of 75F and filled with fuel conforming to MIL-DTL-5624, Grade JP-4 at an internal hose pressure of 40 psi. The hose shall completely seal within 5 minutes when punctured by gunfire at a temperature of -20F and filled with fuel conforming to MIL-DTL-5624, Grade JP-4 at an internal hose pressure of
34、40 psi. The hose shall not shatter as a result of gunfire when tested as specified in 4.5.3.1. 3.5.8.2 Grade JP-8 fuel. The hose shall seal within 2 minutes when subjected to gunfire at an ambient temperature of 75F and filled with fuel conforming to MIL-DTL-83133, Grade JP-8 at an internal hose pre
35、ssure of 40 psi. Slight seepage, but no spurting, after the first 30 seconds will be permitted when the hose is punctured by gunfire at -20F and filled with fuel conforming to MIL-DTL-83133, Grade JP-8 at an internal hose pressure of 40 psi. The hose shall not shatter as a result of gunfire when tes
36、ted as specified in 4.5.3.2. 3.6 Identification of product. A red or yellow stripe, parallel to the longitudinal axis, shall be along the entire length of the hose. The color shall approximate color 1136 or 13538 of FED-STD-595. Parallel to the colored stripe, a marking shall give this specification
37、 number (MIL-PRF-7061), size code, date of manufacture in quarter of year and year, Julian day of the year on which the hose was cured (see 6.3), and the manufacturers Commercial and Government Entity (CAGE) Code. (Example: “MIL-PRF-7061-062-1Q98-046-xxxxx” designates hose size 062 manufactured duri
38、ng the first quarter of calendar year 1998, cured on February 15thof that year, by the manufacturer whose CAGE Code is xxxxx.) The marking shall be repeated every 12 inches or less along the entire length of hose, and shall be legible with normal vision at a distance of three feet. 3.7 Age control.
39、The age of the hose shall conform to the limits specified in SAE-AS1933. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.2). b. Conformance inspection (see 4.3). Provided by IHSNot for Resal
40、eNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-7061D 7 4.1.1 Requirements cross-reference matrix. Table II provides a cross-reference matrix of the section 3 requirements tested or verified in the paragraphs below. TABLE II. Requirements cross-reference matrix. REQUIRE
41、MENT VERIFICATION REQUIREMENT VERIFICATION 3.3 4.5.1 3.5.3.1 4.5.10 3.3.1 4.5.1 3.5.3.2 4.5.6 and 4.5.6.1 3.3.2 4.5.1 3.5.4 4.5.11 3.3.3 4.5.1 3.5.5.1 4.5.7 3.4 4.5.4.1 and 4.5.4.2 3.5.5.2 4.5.10 3.4.1 4.5.1 3.5.6 4.5.12 3.4.2 4.5.3.1, 4.5.3.2, 4.5.4.1, 4.5.4.2, 4.5.6, 4.5.6.1, 4.5.7, 4.5.9, 4.5.10,
42、 and 4.5.11 3.5.7.1 4.5.4.1 and 4.5.4.2 3.5.7.2 4.5.5 3.5.7.3 4.5.8 3.5.8.1 4.5.3.1 3.5.8.2 4.5.3.2 3.5.1 4.5.2 3.6 4.5.1 3.5.2 4.5.9 3.7 4.5.1 4.2 First article inspection. Unless otherwise specified in the acquisition documents (see 6.2). First article inspection shall be conducted on size code 10
43、0 hose and shall consist of all examinations and tests specified in 4.5. Test articles requiring assemblies shall be assembled using hose and specified adapters (see 4.5.4.1 and 4.5.4.2) of the applicable size. Assembled test articles shall be examined to verify there has been no degradation of the
44、hose or the adapters resulting from the assembly process. The First Article Tests may be waived for bidders that have satisfactorily tested hose assembly to these MIL-PRF-7061 specification requirements within twelve months of submittal of bid, or with the approval of the preparing activity. 4.3 Con
45、formance inspection. Conformance inspection shall consist of individual inspection and sampling tests specified in Table III. TABLE III. Inspection matrix. Examination or test Conformance Inspection Individual inspection (see 4.3.1) Sampling inspection (see 4.3.2 and 4.3.2.1) 4.5.1 X 4.5.2 X 4.5.7 X
46、 4.5.8 X 4.5.9 X 4.5.10 X 4.5.11 X 4.5.12 X Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-7061D 8 4.3.1 Individual inspections. All hose shall be subjected to the individual examination and proof pressure test. 4.3.2 Sampling inspections. A
47、 five-foot sample of hose shall be selected from at least each 10,000 feet of hose of the same size produced consecutively, and subjected to the tests specified in Table III. 4.3.2.1 Continuous production. If hose is being produced continuously, only one 5 foot sample need be selected from each days
48、 production. 4.4 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance with the test conditions specified in applicable paragraphs in the specification. 4.4.1 Test fluids. Unless otherwise specified in the test description, the test fluid shall conform t
49、o ASTM-D471, Type I, Type II, or Type III. 4.4.2 Hose assemblies. Hose used for determining performance as a hose assembly shall be assembled with adapters in accordance with the adapter manufacturers instructions. 4.5 Examination and tests. 4.5.1 Examination of product. Hose shall be examined to verify conformance with the requirements of thi
