1、MIL-H-45374E D 9999906 3747463 73 MILITARY SPECIFICATION I INCH-POUND 1 MIL-H-45374E(AR) 1 December 1992 SUPERSEDING 29 January 1988 MIL-H-45374D( AR) HOWITZER, MEDIUM, SELF-PROPELLED, 155-MM: M109, M109A1, MlOSAlB, M109A2, M109A3, AND M109A5 This specification is approved for use by the U.S. Army A
2、rmament, Munitions and Chemical Command, and is available for use by ali Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers Howitzer, Medium, Self-Propelled, 155-mm: M109 Series. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 SDecifications
3、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 listed in the issue of the Department of Defense Index of Specifications and Standards (DODES) and supplement the
4、reto, cited in the solicitation (see 6.2). /Beneficial comments (recommendations, additions, deletions) and any pertinent data 1 which may be of use in improving this document should be addressed to:- Commander, U.S. Army Armament, Munitions and Chemical Command, Attn: SMCAR-BAC-S, Pica tinny Arsena
5、l, New Jersey 07806-5000, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document, or by letter. AMSC NIA FSC 2350 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo
6、reproduction or networking permitted without license from IHS-,-,-MIL-H-45374E 9999906 L7474b2 b54 MIL-H-45374E(AR) SPECIFICATIONS FEDERAL VV-F-800 MILITARY MILP-514 MIL-R-3065 MIL-M-45212 MIL-c-45525 MIL-c-45964 MIL-C-46168 MIL-M-46312 MIL-T-46313 MIL-M-46314 MIL-Q-46315 MIL-T-46316 MIL-H-46709 MIL
7、-T-50782 MIL-C-53072 MIL-T-60895 MIL-T-63359 MIL-M-63988 MIL-M-70821 MIL-70822 STANDARDS MILITARY MIL-STD-130 MIL-STD-21 O MIL-STD-248 MIL-STD-461 MIL-STD-642 ML-STD-882 MIL-STD-1246 -Fuel Oil, Diesel -Plates, Identification, Instruction and Marking, Blank -Rubber, Fabricated Products -Mount, Gun; M
8、ount, Howitzer -Cannon, 155mm Howitzer: M126A1 -Cannon, 155mm Howitzer: M185 -Coating, Aliphatic Polyurethane, Chemical Agent Resistant -Mount, Telescope: M146 -Telescope, Panoramic: M117 -Mount, Telescope: M145 Quadrant, Fire Control M15 -Telescope, Elbow: M118 Series and T176E4 -Howitzer, Medium,
9、Self-propelled: 155-mm, M109A2, M109A3, M109A4, and M109A5; Processing for Storage and Shipment of -Telescope, Panoramic: M117A2 -Chemical Agent Resistant Coating (CARC) System -Telescope, Panoramic: M117A1 -Telescope, Elbow, M118A -Mount, Howitzer, M178 -Mount, Howitzer, M182 -Cannon, 155mm Howitze
10、r: M284 Application Procedures and Quality Control Inspection -Identification Marking of U.S. Military Property -Climatic Information to Determine Design and Test Requirements for Military Systems and Equipment -Welding and Brazing Procedure and Performance Qualifica tion -Electromagnetic Emission a
11、nd Susceptibility Requirements for the Control of Electromagnetic Interference -Identification Marking of Combat and Tactical Transport Vehicles -System Safety Program Requirements -Product Cleanliness Levels and Contamination Control Program 2 Provided by IHSNot for ResaleNo reproduction or network
12、ing permitted without license from IHS-,-,-MIL-H-45374E m 9999906 1747463 590 MIL-H-45374E(AR) (Unless otherwise indicated, copies of Federal and military specifications, standards, and handbooks are ayailable from the DODSSP-Service, Standardization Documents Order Desk, 700 Robbins Avenue, Bldg. 4
13、D, Philadelphia, PA 19111-5094.) 2.1.2 Other Government drawins. The following other Government drawings form a part of this document to the extent specified herein. Unless otherwise specified (see 6.2), the issues are those cited in the solicitation. DRAWINGS 8449200 8736372 8736916 1 1747268 1 174
14、7269 12012100 12012200 1291 0870 12940800 -Howitzer, Medium, Self-Propelled: 155mm, M109Al -Howitzer, Medium, Self-Propelled: 155mm, M109 -Howitzer, Medium, Self-Propelled: 155mm, M109Al B -Installation Instructions for Mounting M140 Alignment Device, Direct Fire Telescope -Installation Instructions
15、 for Mounting M140 Alignment Device, Indirect Fire Telescope -Howitzer, Medium, SelWropelled: 155mm, M109A2 -Howitzer, Medium, Self-Propelled 155mm, M109A3 -Howitzer, Medium, Self-Propelled 155mm, M109A5 -Howitzer, Medium, Self-propelled: 155mm, Mi 09A5 - Modification - Production (Copies of specifi
16、cations, standards, and other Government documents required by contractors with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Non-Government publication. The following document forms a part of this document to the exte
17、nt specified herein. Unless otherwise specified, the issue of the document which is DOD adopted is that listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issue of the document not listed in the DODISS is the issue of the document cited in the solicitation (
18、see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D2000 -Classification System for Rubber Products in Automotive Applications (Application for copies shall be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Non-Government standa
19、rds and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of precedence. In the event of a conflict between the text of this document and
20、 the references cited herein (except for related associated detail specifications, 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-45374E 9999906 l17474b4 427 MIL-H-45374E(AR) specification sheets, or Ms standards), the text of this specifica
21、tion shall take precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Preuroduction model. When specified (see 6.2), a preproduction modells) of the complete vehicle to be furnished under this spec
22、ification shall be produced prior to the manufacture or fabrication of vehicles in quantity. The vehicle(s), when complete, shall be submitted to the Government for examination and tests to determine conformance to the requirements of this speafication. Vehicle(s) submitted by the contractor shall b
23、e fully representative of vehicles proposed to be supplied by the vehicle manufacturer from production facilities and tooling under the supply contract. 3.2 First Droduction vehicles. The vehicles selected shall be fully representative of vehicles proposed to be furnished under the contract, and sha
24、ll be submitted to the Government for inspection to determine conformance to the requirements of this specification. 3.2.1 Reliabilitv. See 6.4.2. 3.21.1 Automotive. The vehicle(s) mean miles between mission failures (MMBMF) shall not be less than 375 miles during the first 4000 miles of operation c
25、onsisting of 25% hard-surface roads, 50% secondary roads, and 25% cross-country operation. 3.2.1.2 Armament. The armament system shall exhibit a mean round between failure (MRBF) of not less than 625 rounds. 3.2.2 Durability. 3.2.2.1 Automotive. The vehicle, with rated payload, shall have a 0.50 pro
26、bability of completing the first 400 operation hours without replacement, rebuild, or overhaul of power train components (engine, transmission, and final drive) for failures chargeable to hardware. 3.2.3 Maintainability. 3.2.3.1 Automotive. The total scheduled and unscheduled maintenance excluding d
27、river/crew checks and servces shall not exceed 200 man-hours during 4000 miles of operation. At an average speed of 10 miles per hour (mph) of operation, this specification yields a maintenance ratio of 0.5. The scheduled maintenance intervals shali not be less than 750 miles or semiannual, whicheve
28、r comes first. The mean time to repair W“R) shall not exceed the hours listed below for each level of maintenance 95% of the time. Crew 3.52 hours Organizational 2.93 hours Direct support 5.25 hours General support 6.24 hours Overall 3.64 hours 4 Provided by IHSNot for ResaleNo reproduction or netwo
29、rking permitted without license from IHS-,-,-MIL-H-45374E 9 0b 1747465 363 9 MIL-H-45374E( AR) 3.2.3.2 Armament. The M“R of the armament system shall not exceed the hours listed below for each organizational level. Crew 2.76 hours Organizational 2.76 hours Direct support 10.81 hours General support
30、6.00 hours Overall 6.65 hours 3.3 Materials. 3.3.1 Oualified Droducts. Vehicle manufacturer shall be responsible for ascertaining that all assemblies and component parts which require product qualification in accordance with a specification are listed or qualified for inclusion on the applicable Qua
31、lified Products List (QPL). In the instance that a qualified vendor no longer exists on the QPL, the contractor is responsible for selecting a vendor whose product meets the minimum requirements of the specification. The contractor must also submit to the Government, for approval, docu- mentation wh
32、ich confirms the vendors ability to meet the specification in question. Manu- facturers inspection records shall specifically list such components, name of supplier(s), and number and date of applicable QPL or Government approved vendors not on a QPL. 3.3.2 Ozone resistant. Rubber products procured
33、under requirements of MIL-R-3065 are to be ozone resistant to the degree specified by the C1 requirements of ASTM 02000, unless the component drawing specifically states that ozone resistance is not required. 3.4 Constmction. Vehicles, components, subassemblies, and assemblies shall be fabricated an
34、d assembled into a complete vehicle in accordance with drawings listed or referenced to in 2.1.2 (8736372 for M109,8449200 for M109Alt8736916 for M109AlB, 12012100 for Ml09A2,12012200 for M109A3, and 12910870 Modification or 12940800 Production for M109A5). All parts requiring identification shall b
35、e identified in accordance with MIL-STD- 130. 3.4.1 Sealing. 3.4.1.1 Sealer. The sealer used to seal a vehicle shall prevent the accumulation of water greater than 1 inch in the bottom of the hull when operating in water up to 42 inches in depth for 15 minutes. 3.4.1.2 Hatches, doors, and DerisCoDe
36、seals. With hatches and doors closed, the seals shall prevent the entrance of water into the interior of the vehicle. 3.4.1.3 Turret ring: seal. The seal shall prevent the entrance of water into the interior of the vehicle. The turret ring seal installed in the M109A1 vehicle requires inflation to s
37、eal. 3.4.2 Special kits. When specified (see 6.21, special kits shall be furnished as follows: 3.4.2.1 Winterization kit. With the winterization kit installed in the vehicle, the engine shall start and perform satisfactorily when the vehicle is operating in ambient air temperatures of zero to -65F.
38、5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-45374E W Ob L7474bb 2TT MIL-H-45374E(AR) 3.c 2. Flotation kit. With the flotation kit installed, the vehicle shall perform satisfactorily when operating in water of a depth requiring a flotation
39、 kit. The flotation kit is not applicable to the M109A2, M109A3, or M109A5 vehicles. 3.4.3 Carbon monoxide concentration. The exhaust system of the engine, personnel heater, or engine heater, when used individually or collectively, shall prevent carbon monoxide concentration in the occupied portions
40、 of the vehicle in excess of 50 parts per million (ppm) under normal operation. 3.4.4 Controls. Controls for the engine, transmission, electrical equipment, permanently mounted fire extinguisher system, armament, and other operating mechanisms shall operate without any interference. 3.4.5 Throttle l
41、inkage. With throttle linkage attached to engine, and pedal fully depressed, the throttle shall be at full rack position. With the throttle at full rack position, the pedal shall be in contact with the stop. 3.4.6 Adiustment mechanism. All adjusting mechanisms shall operate without any interference,
42、 and shall maintain adjustment settings under all operating conditions. 3.4.7 Fasteners and locks. All fastening and locking devices shall be positive locking. Means for locking vehicle from outside shall be provided. 3.4.8 Fuel svstem. During engine operation, the fuel system shall maintain fuel su
43、pply to the engine when ascending and descending 60% grades in forward and reverse gear, and when vehicle is being operated on 40% side slopes, with each side of vehicle up slope. 3.4.8.1 Fuel tanks. Provisions shall be made to ensure the internal cleanliness of the fuel tanks prior to initial fueli
44、ng of vehicle. The fuel tanks shall be capable of receiving fuel at a rate of 50 gallons per minute (gpm), and shall be free from leakage after installation and when tanks are filled to capacity. 3.4.8.2 Fuel lines. Provisions shall be made to ensure the internal cleanliness of fuel lines and connec
45、tions prior to final assembly or initial fueling of vehicle. All fuel lines and connections shall be free from leakage. 3.4.9 Hvdraulic reservoir and lines. Provisions shall be made to ensure the internal cleanliness of the hydraulic reservoir, lines, and connections prior to initial filling of the
46、reservoir. The system shall be free from leakage under all conditions of vehicle operation. The hydraulic fluid in the reservoir shall meet the cleanliness requirements of MIL-STD- 1246, Level 200 (see 6.4.3). 3.4.10 Electrical system. 3.4.10.1 Generatinv svstem voltane (alternator). The generating
47、system output voltage shall remain within 28.0 f 0.7 volts dc under all conditions of vehicle electrical loading as long as the total system current demand does not exceed 100 amperes and the engine speed does not drop below 1025 revolutions per minute (rpm) (i.e., hydraulic power O e O 6 Provided b
48、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-4537YE W 9999906 1747467 136 = MIL-H-45374E (AR) pack pump motor and bilge pump motor must be off for this criteria and the systems batteries must be fullycharged). 3.4.10.2 Lights. The internal and externa
49、l lights, as specified on applicable drawings, shall operate throughout all vehicle operating conditions. 3.4.10.3 Bike pump. The electrical system shall supply 24 volts dc nominal to the bilge pump motor. 3.4.10.4 Air cleaner blower. The air cleaner motors shall be capable of providing an unrestricted flow of air through each blower outlet. The blower motors shall operate only when the engine is operating. 3.4.10.5 Personnel heater. The system shal
