1、MIL-M-2 9 4 16 (MC) 20 Yovember 1984 MILITARY SPECIFICATION MODULE, FUEL TANK (SIXCON) This specification is approved for use by the U.S. Marine Corps, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specificatio
2、n establishes the requirements for manufacture and acceptance of the Fuel Tank Module (SIXCON). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards and handbooks. Unless otherwise specified, the following specifications, standards, and handbooks of the issue listed in t
3、hat issue of the Department of Defense Index of Specifications and Standards (DODISS) specified in the solicitation form specified herein. SPECIFICATIONS MIL I TARY MIL-P- 11 6 MIL-N-5877 MIL-1-6866 MIL-1-6868 MIL-W-8611 MIL-E-19933 a part of this specification t the extent - Preservation, Methods o
4、f - Nozzle, Pressure Fuel Servicing, Locking, Type D1, Normal 2-+ Inch D i ame ter - Inspection, Penetrant Method of - inspection Process, Magnetic Particle - Welding, Metal Arc and Gas, Steels and Corrosion and Heat Resistamt Alloys, Process for - Electrodes and Rods - Welding, Bare, Ch-romium and
5、Chromium Nickel Steels BeneSicial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this iiocument should be addressed to: Commandant of the Marine Corps, Code LMA-1, Washington, D.C. 20380, by using the self-addressed Standardization Document I
6、mprovement Proposal (DD Form 1426) appearing at the end of this document or by letter. FSC 2910 THIS DOCUMENT CONTAINS /,d PAGES Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-29 4 16 (MC) MIL-E-22200/2 - Electrodes, Welding, Covered (Austenet
7、ic Chromium Nickel Steel for Corrosive and High Temperature Services) MIL-C-27487 MIL-E-52798 STANDARDS MILITARY MIL-STD-1 O 5 MIL-STD- 129 MIL-STD-130 MIL-STD-453 MIL-STD-470 MIL-STD-471 MIL-STD-781 MIL-STD-785 MIL-STD-794 MIL-STD-810 MIL-STD-889 - Coupling Halves, Quick Disconnect, Cam-locking Typ
8、e - Enamel, Alkyd, Camouflage - Sampling Procedures and Tables for Inspection by Attributes - Marking for Shipment and Storage - Identification Marking of U.S. Military Property - Inspection, Radiographic - Maintainability Program Requirements (for Systems and Equipments) - Maintainability Demonstra
9、tion - Reliability Tests: Exponential Distri- - Reliability Program for Systems and Equipment Development and Production - Parts and Equipment,Procedures for Packaging and Packing of - Enviromiental Test Methods and Engineering Guidelines bution - Dissimilar Metals 2.1.2 Other Government documents,
10、drawings and publications. The following other Government documents, drawings and publications form a part of this specification to the extent specified herein, DRAWINGS U.S. Marine Corps 845009A0000 SIXCON Fuel Tank Module 2 Provided by IHSNot for ResaleNo reproduction or networking permitted witho
11、ut license from IHS-,-,-MIL-M-29416 (MC) CODE OF FEDERAL REGULATIONS 49CFR178- Shipping Container Specification 4 9CFR4 51- Testing and Approval of Cargo Containers (Copies of specifications, standards, drawings and publications required by manufacturers in connection with specific acquisition funct
12、ions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. The issues of the documents which are indicated as DoD adopted shall be the issue listed i
13、n the current DoDISS and the supplement thereto, if applicable. AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) IS0 668 - Freight Containers - External Dimensions and Ratings IS0 1161 - Series 1 Freight Containers - Corner Fittings - Specification IS0 1496/1 - Series 1 Freight Containers - Specificatio
14、n and Testing - Part I: General Cargo Containers IS0 1496/ - Series 1 Freight Containers - Specification III and Testing - Part III: Tank Containers for liquids and gases (Applications for copies should be addressed to the American National Standards Institute, 1430 Broadway, New York 10012.) AMERIC
15、AN WELDING SOCIETY (AWS) AWS D1.l - Structural Welding Code, Section 5, Qualification - Welding Inspection Manual (Applications for copies should be addressed to the American Welding Society, 2501 N.W. 7th St., Miami, FL 33125.) AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) Boiler and Pressure Ves
16、sel Code, Welding Qualification, Section IX (Application for copies should be addressed to the American Society Df Mechanical Engineers, 345 East 4th St., New York, NY 10017.) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M- 29 4 16 (MC) AMEI
17、IZCAN SOCIETY OF TESTING AND MATERIALS (ASTM) ASTM D3951-82 - Standard Practice for Commercial Packaging (Application for copies should be addressed to American Society for Testing and Materials, 1916 Race St., Philadelphia, PA 19103.) 2.3 Order of precedence. In the event of a ccnflic between the o
18、f this specification shall take precedence. text of this specification and the references cited k erein, the text 3. REQUIREMENTS 3.1 First article. Unless otherwise specified (see 6.2), the contractor shall furnish three units for first article inspection (see 4.3). The first article shall be manuf
19、actured using the same methos, procedures, and tooling proposed for production. Approval of the first article by the procuring activity shall not relieve the contractor of the obligation to supply equipment conforming to this specification. Changes or deviations in production units from the approved
20、 first article baseline shall require written authorization by the procuring activity. 3.2 Materials. Materials used in fabrication of the fuel tank module shall be as specified on Drawing No. 845009AOOOO. Materials shall be free of defects and imperfections that might affect the serviceability and
21、appearance of the finished product. Substitute material shall not be utilized prior to written authorization by the procuring activity. Materials not specified shall be selected by the contractor and shall be subject to all provisions of this specification. Special precautions shall be observed to e
22、nsure that materials in contact with fuel do not contain contaminants which would preclude its intended use. 3.3 Design and construction. The fuel tank module shall be fabricated and assembled in accordance with Drawing No. 845009A0000 and as specified herein. 3.3.1 Safety approval. Necessary action
23、s as prescribed in 49CFR451 (see Code of Federal Regulations) shall be accomplished to obtain approval of the containers by an appropriate Convention for Safe Containers (CSC) approval authority (see 49CFR451), Subpart B - “Approval of New Containers“ and the required CSC Safety Approval Plate shall
24、 be provided and affixed to the container as prescribed in 49CFR451, Subpart C - “Safety Approval Plate“. The notice of approval received from the approval authority which authorizes the attachment of CSC Safety Approval Plates shall be furnished to the contracting officer within 30 days of receipt
25、by the contractor. The contractor shall also provide a certificate to the contracting officer stating the serial number, model number, and any pertinent manufacturing identification numbers of the tanks that are covered under each specific Notice of Approval. 4 Provided by IHSNot for ResaleNo reprod
26、uction or networking permitted without license from IHS-,-,-MIL-M-29416 (MC) 3.3.2 Fuel tank fittings and valves. Fuel tank modules shall be equipped with a 2-inchr drybreak valve inlet and a 2-inch drybreak disconnect valve outlet. Each shall be fitted with a quick dis- connect coupling (male at th
27、e outlet, female at the inlet) to facilitate the connection of the hoses. Dust caps and plugs with retention chains shall be provided on all quick disconnect. The quick disconnect couplings shall conform to MIL-C-27487. In addi- tion, each fuel tank shall contain a female fitting to accept the under
28、wing NATO pressure nozzle, type D-1 conforming to MIL-N-5877. The location of this female fitting shall be such that any commer- cial nozzle meeting the MIL-N-5877 requirements can be engaged even when the 2-inch drybreak outlet is manifolded to adjoining tank modules. The arrangement of inlet fitti
29、ngs should be provided for filling near the bottom of the tank to minimize splashing and build- up of a static charge within the tank. Inlet fittings shall permit filling rates up to 350 gallons per minute. 3.3.3 High level liquid sensor and shutoff valve. The fuel tank module shall contain a shutof
30、f valve and a high level liquid. sensor. The high level liquid sensor shall close the shutoff valve when the tank is full to prevent fuel spillage by overflowing the tank. The high level liquid sensor and shutoff valve shall operate without the need for electrical power or other auxiliary energy sou
31、rce. 3.3.4 Liquid level indicator. A liquid level indicator shall be provided for each fuel tank module. 3.3.5 Manhole. The manhole shall be compatible with vapor recovery systems and shall provide access to the interior of the tank for cleaning and repair. The manhole shall be provided with a remov
32、able gasketed cover capable of making a leakproof seal. A spring loaded pressure relief valve shall be incorporated in the cover to relieve internal pressure while preventing the entrance of outside air. 3.3.6 Welding and welders. 3.3.6.1 Weldinq. The fuel tank module and its components shall be wel
33、ded in accordance with Drawing No. 845009A0000. Welding shall meet the requirements of MIL-W-8611. The surface of parks shall be free from rust, scale, paint, grease, or other foreign matter. Spot, tack, or intermittent welds shall not be permitted unless otherwise cited in Drawing No. 845009A0000.
34、Weld penetration shall be such as to provide transference of maximum design stress through the base metal juncture. Fillet welds shall be provided when necessary to reduce stress concentration. All finished weldments shall be reason- ably.straight and true in accordance with good shop practice. Faul
35、ty weldments shall be corrected by welding only. Peening shall not be utilized to correct faults. Weld spatters shall be removed. All parts shall be properly aligned and meshed and operable without interference, tight spots or other irregularities. 5 Provided by IHSNot for ResaleNo reproduction or n
36、etworking permitted without license from IHS-,-,- MIL-M-27416 27 9 777770b 0175328 4 m MIL-M-29416 (MC) 3.3.6.2 -I- Welders. All welders shall be qualified for the types of welds required in the fabrication of fuel tank modules. Before assigning any welder to welding work, the contractor shall provi
37、de the contracting officer with certification that the welder has passed qualification tests as prescribed by either of the following listed codes for the type of welding operation to be performed and that such qualification is effective as defined by that particular cado . AWS D1.1, Structural Weld
38、ing Code, Section 5. Qualification - Welding Inspection Manual Boiler and Pressure Vessel Code, Welding Qualification, Section IX (ASME) 3.3.6.3 Electrodes. Welding electrodes shall meet the require- ments of either MIL-E-19933 or MIL-E-22200/2. Electrodes used to weld class 304L corrosion - resisti
39、ng steel shall be type MIL-309 or MIL-310 only. 3.3.7 Castings and forgings. Castings and forgings shall be manu- factured in accordance with Drawing No. 845009A0000. All castings shall be free from patching, inclukions, misplaced coring, warping, or any other defect that reduces the castings abilit
40、y to perform its intended function. Forgings shall be uniform in quality and condition, and shall be free from tears, cracks, seams, laps, internal ruptures, imbedded scale, segregation and other defects. 3.3.8 Bolted and pinned connections. Bolt and pin holes shall be accurately punched or drilled
41、and shall have the burrs removed. 3.3.9 Machine work. Where machined surfaces are required to be heat treated, hardened, finish grounded, plated or coated, the part dimensions, as specified in Drawing No. 845009A0000, shall be main- tained. 3.3.10 Metal fabrication. Metal used in the fabrication of
42、the fuel tank modules shall be free from kinks and sharp bends. The straightening of material shall be done by methods that will not cause injury to the metal. Flame cutting, using a tip suitable for the thickness of the metal, may be employed instead of shearing or sawing. Reentrant cuts may be mad
43、e with controlled means in order to insure uniformity of size and shape. Precautions shall be taken to avoid overheating, and heated metal shall be allowed to cool slowly. The use of dissimilar metals in intimate contact with each other shall be avoided wherever possible. When the use of dissimilar
44、metals cannot be avoided, an interposing material that will eliminate or minimize the galvanic effect shall be used in accordance with MIL-STD-889. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-il-2943b 27 m 9977706 0375329 b m MIL-M-29416 (M
45、C) I 3.3.11 Interchangeability. Fuel tank modules of the same I requirements specified in IS0 668, 1161, 1496/I, and 1496/III. classification, furnished under any specific contract, shall be I physically and mechanically identical. They shall meet the :a 3.4 Reliability. The fuel tank module shall h
46、ave a 0.98 (98 percent) probability of completing a 12-hour mission. 3.5 Maintainability. The mean time to repair (MTTR) shall not exceed 1 hour at the organizational level and 2 hours at the direct support level. 3.6 Performance characteristics. The fuel tank module shall meet the.pressure and leak
47、age requirements of 49CFR178.253-5, when manifolded with appropriate hose and fittings. i 3.7 Environmental characteristics. 3.7.1 Temperature and humidity. The fuel tank module shall with- stand, without leakage, humidity resistance, low temperature (-25OF) and high temperature (160F) when tested a
48、s specified in 4.5.13. 3.7.2 Salt fog. The fuel tank module shall withstand, without cracking, cracked welds, corrosion and peeling of paint, salt fog when tested as specified in 4.5.13.4. 3.7.3 Vibration. Fuel tank modules, when full, must be capable of withstanding a 1-hour vibration test without
49、breakage, permanent deformation or leakage (see 4.5.13.5) . 3.7.4 Drop test. Fuel tank modules, when full, must be capable of withstanding a 2-foot free drop on a flat, unyielding surface without breakage, permanent deformation, or leakage (see 4.5.13.6). 3.8 Painting. The uel tank module shall be painted as speci- fied on Drawing No. 845009A0000 and MIL-E-52798. Color shall be as specified in 6.2. 3.9 Marking/serialization. 3.9.1 Fuel tank module. The fuel t
