1、INCH-POUND MIL-PRF-370J 7 May 2002 SUPERSEDING MIL-PRF-370H 01 February 1999 PERFORMANCE SPECIFICATION HOSE AND HOSE ASSEMBLIES, NONMETALLIC: ELASTOMERIC, LIQUID FUEL This specification is approved for use by the U.S. Army Tank-automotive and Armaments Command, Department of the Army and is availabl
2、e for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers standard collapsible and non-collapsible, lightweight collapsible, and low temperature non-collapsible elastomeric, liquid fuel transfer hose and hose assemblies. 1.2. Classification
3、. The hose and hose assemblies are of the following types, sizes, classes, styles, material, and lengths (see 6.2). 1.2.1 Type. The types of hose and hose assemblies are as follows: Type A - Collapsible (see 6.5.1). Type B - Non-collapsible (see 6.5.2). Type C - Collapsible, lightweight (2, 3, 4, an
4、d 6-inch (in.) nominal diameter only). Type D - Non-collapsible low temperature. 1.2.2 Size. The sizes of the hose and hose assemblies, as determined by the nominal inside diameter of the hose, are as follows: Size 01 0.50 in. Size 06 2.00 in. Size 02 0.75 in. Size 07 2.50 in. Size 03 1.00 in. Size
5、08 3.00 in. Size 04 1.25 in. Size 09 4.00 in. Size 05 1.50 in. Size 10 6.00 in. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Tank-automotive and Armaments Command, ATTN: AMSTA-TR-D/
6、210, Warren, MI 48397-5000, by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 4720 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction o
7、r networking permitted without license from IHS-,-,-MIL-PRF-370J 2 1.2.3 Class. The classes of hose and hose assemblies will be as follows: Class 0 - Without fittings Class 1 - Male fitting on one end and female fitting on other end Class 2 - Male fitting both ends Class 3 - Female fitting both ends
8、 Class 4 - Sexless both ends 1.2.4 Style. The end fitting style will be as follows: Style 0 - Bulk hose Style A - Cam-locking end fittings Style B - Re-attachable (reusable) compression end fitting up to 4-in. Style C - Grooved end fittings Style D - One-time-use internal expanded end fittings up to
9、 4-in. Style E - Quick-disconnect, sexless couplings 1.2.5 Material. The material used in the end fittings will be as follows: Material A - Aluminum Material B - Brass Material C - Corrosion resistant steel Material D - Steel (carbon) Material O - Other Material S - Contractor Specified 1.2.6 Length
10、. The hose and hose assembly length will be expressed in feet (ft), to 4 significant figures, with the last digit indicating tenths of a foot. The following are examples of the length code: 5000 - 500 ft, 0 in. 0505 - 50 ft, 6 in. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this sec
11、tion are specified in sections 3 and 4 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 of this list, document users are c
12、autioned that they must meet all specified requirement documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this docum
13、ent to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). Provided by IHSNot for ResaleNo reprodu
14、ction or networking permitted without license from IHS-,-,-MIL-PRF-370J 3 SPECIFICATIONS FEDERAL A-A-52557 - Fuel Oil, Diesel; For Posts, Camps and Stations. A-A-52592 - Pipe Fittings: One Or More Ends Grooved. A-A-59326 - Coupling Halves, Quick-Disconnect, Cam-Locking Type. A-A-59377 - Coupling Ass
15、embly, Quick-Disconnect, Sexless Type. DEPARTMENT OF DEFENSE MIL-DTL-5624 - Turbine Fuel, Aviation, Grades JP-4 and JP-5, and JP-5/JP-8 St. MIL-F-46162 - Type I and II Referee Grade Diesel. MIL-DTL-83133 - Turbine Fuels, Aviation, Kerosene Types, NATO F-34 (JP 8), NATO F-35 and JP-8 +100. STANDARDS
16、FEDERAL FED-STD-595 - Colors used in Government Procurement. (Unless otherwise indicated, copies of the above specifications, standards, and handbooks are available from Document Automation and Production Service, Bldg 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.3 Non-Government publicat
17、ions. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not list
18、ed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) ASME B1.20.1 - Pipe Threads, General Purpose (Inch). (Copies are available from the American Society of Mechanical Engineers, 3 Park Avenue, New York, NY 10016-5990 o
19、r website http:/www.asme.org/ .) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D380 - Standard Test Methods for Rubber Hose (DoD Adopted). ASTM D381 - Standard Test Method for Existent Gum Content in Fuels by Jet Evaporation (DoD Adopted). ASTM D412 - Standard Test Methods for Vulcanized Ru
20、bber and Thermoplastic Elastomers - Tension (DoD Adopted). ASTM D413 - Standard Test Methods for Rubber Property - Adhesion to Flexible Substrate (DoD Adopted). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-370J 4 ASTM D471 - Standard Test
21、Method for Rubber Property - Effect of Liquids (DoD Adopted). ASTM D518 - Standard Test Method for Rubber Deterioration - Surface Cracking (DoD Adopted) ASTM D573 - Standard Test Method for Rubber Deterioration in an Air Oven (DoD Adopted) ASTM D746 - Standard Test Method for Brittleness Temperature
22、 of Plastics and Elastomers by Impact (DoD Adopted) ASTM D790 - Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials (DoD Adopted) ASTM D975 - Standard Specification for Diesel Fuel Oils (DoD Adopted) ASTM D1053 - Standard Test Met
23、hods for Rubber Property - Stiffening at Low Temperatures: Flexible Polymers and Coated Fabrics (DoD Adopted). ASTM D1149 - Standard Test Method for Rubber Deterioration - Surface Ozone Cracking in a Chamber (DoD Adopted). ASTM D1655 - Standard Specification for Aviation Turbine Fuels (DoD Adopted).
24、 ASTM D2137 - Standard Test Methods for Rubber Property - Brittleness Point of Flexible Polymers and Coated Fabrics (DoD Adopted) ASTM D3389 - Standard Test Method for Coated Fabrics Abrasion Resistance (Rotary Platform, Double-Head Abrader) (DoD Adopted). (Copies are available from the American Soc
25、iety for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or website http:/www.astm.org .) AMERICAN WATER WORKS ASSOCIATION (AWWA) AWWA C606 - Grooved and Shouldered Joints (DoD Adopted). (Copies are available from the American Water Works Association, 6666 West Quincy
26、Avenue, Denver, Colorado 80235 or website http:/www.awwa.org/ .) 2.4 Order of precedence. 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 applicable laws and regula
27、tions unless a specific exemption has been obtained. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-370J 5 3. REQUIREMENTS 3.1 First article. Unless otherwise specified (see 6.2), hose/hose assembly shall be subjected to first article inspec
28、tions in accordance with (IAW) 4.1.1. 3.2 Materials. The manufacturer shall select materials capable of meeting all the operational and environmental requirements specified herein. The hose assemblies shall be fabricated from compatible materials, inherently corrosion resistant or treated to provide
29、 against corrosion and deterioration during storage and operational conditions experienced. 3.2.1 Recycled, recovered, or environmentally preferable materials. Recovered materials (see 6.5.3) shall be used to the maximum extent practicable, provided the components meet all other requirements of this
30、 specification. Used, rebuilt, or remanufactured components shall not be incorporated into the hose or hose assemblies. 3.3 Design and construction. The hose shall be finished lengths, as specified, consisting of a tube (see 6.5.4), reinforcement (see 6.5.5), stiffening (non-collapsible only), and a
31、 cover (see 6.5.6). Hose assemblies shall be the defined types, sizes and lengths of hose, equipped with end fittings as specified. a. Tiering of specification and standards. The following documents used for the procurement of hose or hose assemblies shall be designated as “first tier“ requirements,
32、 and all requirements therein shall be applicable to this procurement. Design and performance data identified in commercially based standards, practices, and specifications as “General Notes“ and “Notes“ (e.g. ASME, CIDs, and similar) shall be required for the purposes of design and performance crit
33、eria, Government and contractor-conducted testing, and other verification activities. The Governments objective in requiring what would normally be considered secondary/tertiary-level and referenced information is due to the non-availability of a traditional Government or commercial-style document t
34、hat would satisfy this system/item procurement requirements. 1. CID (Commercial Item Descriptions IAW the Federal Standardization Manual) 2. ASME 3. SAE 4. ASTM 5. Other specified commercially-based specifications/requirements 6. Other specified regulatory-based requirements (EPA, OSHA, UL, NSF, NOA
35、A) 3.3.1 Hose dimensions. 3.3.1.1 Type A, B and D hose size. All type A, B, and D hoses shall conform to the size requirements as specified in table I. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-370J 6 TABLE I. Type A, B, and D hose diam
36、eters and tolerances. Size code Inside diameter (in.) Outside diameter (in.) 01 0.50 0.03 1.06 0.03 02 0.75 0.03 1.37 0.03 03 1.00 0.06 1.62 0.06 04 1.25 0.06 1.87 0.06 05 1.50 0.06 2.12 0.06 06 2.00 0.06 2.66 0.06 07 2.50 0.06 3.19 0.06 08 3.00 0.06 3.75 0.06 09 4.00 0.06 4.75 0.06 10 6.00 0.06 6.8
37、7 +0.12/-0.06 3.3.1.2 Type C hose size and weight. Type C hoses shall conform to the size and weight requirements in table II. TABLE II. Type C hose diameter, tolerance, and weight. Size code Inside diameter (in.) Weight (lb/ft) 1/ 06 2.06 0.06 0.5, maximum 08 3.06 0.06 0.75, maximum 09 4.06 0.06 1.
38、0, maximum 10 6.06 0.06 1.5, maximum 1/ lb/ft = pounds per foot 3.3.2 Length. The length of hose and hose assembly shall be the actual hose length exclusive of the end fittings. The tolerance on the length shall be 2 percent (%). 3.3.3 Tube and cover. The tube shall be of petroleum-resistant compoun
39、ds (see 3.4.2) and shall be smooth, free of defects (e.g., holes, pitting, blisters, etc.), and of a uniform thickness. The cover shall be of petroleum-resistant compounds (see 3.4.2) and shall be free of defects (e.g., holes, pitting, blisters, etc.) and be ultraviolet-stable and ozone-resistant. T
40、he tube and cover shall meet all the performance requirements as specified herein. 3.3.4 Static bond. Unless otherwise specified (see 6.2), the hose shall contain a continuous embedded static wire(s) or other electrical conductor(s). The conductor(s) shall provide a continuous electrical bond betwee
41、n the hose ends to include fittings. The maximum resistance shall not be greater than 1.5 ohms per linear foot of hose. The bond shall not break when the hose is coiled, sharply bent, or subjected to internal or external pressures as specified. 3.3.5 End fittings. End fittings shall be as identified
42、 by class, style, and material and sized for the hose size specified. Non-corrosive devices (see 6.4) shall be used for the attachment of end fittings to the hose. All end fittings shall be securely attached to the hose to prevent slippage or leakage under normal operation and when subjected to hydr
43、ostatic proof pressure. Unless Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-370J 7 otherwise specified (see 6.2), the end fittings shall be provided with protective, closed end, reusable dust plugs or caps. Means (i.e. chain) shall be used
44、 to captively retain the dust plugs or caps to the end fittings. 3.3.5.1 Coupling halves, quick-disconnect cam-locking type. For type A, B, and D hoses, cam-locking end fittings shall be class 1 IAW A-A-59326. For type C hoses, all interface dimensions of the cam-locking end fittings shall be IAW A-
45、A-59326, but the working pressure rating shall be not less than 150 pounds per square inch gage (psig). The 6-in. 150-psi rated coupling can use more than two cam arms. Unless otherwise specified, dust caps or plugs for cam-locking end fittings shall be in accordance with A-A-59326/10 and A-A-59326/
46、11, respectively. The coupling halves and gaskets shall be compatible for use with the fuels listed in 3.4.2 3.3.5.2 Grooved end fittings. Grooved end of the hose fitting adapters shall be IAW AWWA C606, Table 4 (Cut grooving dimensions - Steel, aluminum, brass, and other metallic pipe of IPS dimens
47、ions). Hose adapter section of the grooved end fitting shall be sized to fit the inside diameter of hose as specified in Table I for non-collapsible type hoses and Table II for the collapsible type hoses. The grooved end fittings shall be rated at 150 psig. 3.3.5.3 Re-attachable screw-on hose fittin
48、gs. The re-attachable compression type fitting (see figure 1) shall consist of an outer sleeve, inner body/tailpiece, and wire compression grip. The tailpiece shall have one end threaded with American National Standard Taper Pipe threads (NPT) IAW ASME B1.20.1, for attachment to existing assemblies
49、and a hose shank type end for hose attachment. The hose shank end of the tailpiece shall have the sleeve threaded over the tailpiece that allows the hose to be compressed and firmly secured to the tailpiece. When the sleeve is fully engaged it shall extend beyond the hose end of the tailpiece but shall not cover any of the NPT thread. The sleeve shall have at least four flat surfaces to permit th
