1、INCH-POUNDMIL-DTL-82909A (OS)13 March 2003SUPERSEDINGMIL-DTL-82909 (OS)15 September 1995DETAIL SPECIFICATIONBATTERY, THERMAL, MXU-792A/AThis specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is availablefor use by all Departments and Agencies of the Depa
2、rtment of Defense.1. SCOPE1.1 Scope. This specification covers the requirements for the manufacture and acceptance of the MXU-792A/A Thermal Battery, referred to herein as “battery pack“.2. APPLICABLE DOCUMENTS2.1 General. The documents listed in this section are specified in sections 3 and 4 of thi
3、s specification.This section does not include documents cited in other sections of this specification or recommended foradditional information or as examples. While every effort has been made to ensure the completeness of thislist, document users are cautioned that they must meet all specified requi
4、rements documents specified insections 3 and 4 of this specification, 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 thisdocument to the extent specified herein. Unless otherwise specified, the iss
5、ues of these documents arethose listed in the Department of Defense Index of Specifications and Standards (DODISS) andsupplement thereto, cited in the solicitation (see 6.2).SPECIFICATIONSDepartment of DefenseMIL-I-23659 Initiators, Electrical, General Design Specification forMIL-C-83124 Cartridge A
6、ctuated Devices/Propellant Actuated Devices, General DesignSpecification forBeneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving thisdocument should be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Engineer
7、ingDocumentation Branch (Code 4230), 101 Strauss Avenue, Indian Head, MD 20640-5035 by using the StandardizationDocument Improvement Proposal (DD Form 1426) appearing at the end of this document, or by sending a letter.AMSC N/A FSC 6135DISTRIBUTION STATEMENT A: Approved for public release; distribut
8、ion is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-82909A (OS)2MIL-C-83125 Cartridges for Cartridge Actuated Devices/Propellant Actuated Devices,General Design Specification forSTANDARDSDepartment of DefenseMIL-STD-202 Test Meth
9、ods for Electronic and Electrical Component PartsMIL-STD-331 Test for Fuze and Fuze Components, Environmental and PerformanceMIL-STD-810 Environmental Engineering Considerations and Laboratory TestsMIL-STD-1168 Ammunition Lot Numbering and Ammunition Data Card(Unless otherwise indicated, copies of F
10、ederal and military specifications and standards are available from:Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.)2.2.2 Other Government documents, drawings, and publications. The following other Governmentdocuments, drawings, and publications form
11、a part of this document to the extent specified herein. Unlessotherwise specified, the issues are those cited in the solicitation (see 6.2).DRAWINGSNAVAL AIR SYSTEMS COMMAND (CAGE Code 30003)MBEU147990 Battery, Thermal, MXU-792A/AMBEU147991 Battery, Thermal838AS229 MXU-792A/A Vibration/Shock Test Fi
12、xture838AS231 MXU-792A/A Functional Test Setup (Application for copies should be addressed to the Commanding Officer, Naval Aviation Supply Office,Cog I Support Branch (Code 03441), 5801 Tabor Avenue, Philadelphia, PA 19120!5099.)2.3 Non-Government publications. The following documents form a part o
13、f this document to the extentspecified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are thoselisted in the issue of DODISS cited in the solicitation. Unless otherwise specified, the issues of documentsnot listed in the DODISS are the issues of the documents c
14、ited in the solicitation (see 6.2).AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)E1742 Standard Practice for Radiographic Examination(Application for copies should be addressed to the American Society for Testing and Materials, 1916 RaceStreet, Philadelphia, PA 19103-1187.)Provided by IHSNot for
15、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-82909A (OS)32.4 Order of precedence. In the event of a conflict between the text of this document and the referencescited herein, the text of this document takes precedence. Nothing in this document, however, supersed
16、esapplicable laws and regulations unless a specific exemption has been obtained.3. REQUIREMENTS3.1 First article. When specified in the contract or purchase order (see 6.2), a sample shall be subjected tothe first article inspection (see 4.2.1 and 6.3).3.2 Flight critical part. The battery pack is a
17、 flight critical item and the technical data package shall beidentified and procured as such.3.3 Design and construction. The following applies to the qualification status and configuration controlof the battery pack over the entire life of the item.3.3.1 Identical configuration. The battery pack de
18、sign and construction shall be identical to thatsubjected to qualification testing and approved for service use by the Navy. The battery pack operationallife shall be 225 seconds, minimum, in the operational environment of 65 to 200F.3.3.2 Configuration control. Only the thermal battery procured fro
19、m the vendor(s) listed on DrawingMBEU147991 is approved for the application specified. A substitute thermal battery shall not be usedwithout prior testing and approval by the Indian Head Division, Naval Surface Warfare Center, IndianHead, MD 20640-5035 and the Naval Air Systems Command Headquarters.
20、3.4 Primary components. The percussion primer and the thermal battery chemicals are primarycomponents. Only one lot of each primary component shall be used in a battery pack lot. One primary lotmay be used in more than one battery pack lot.3.4.1 Percussion Primers. Only primers manufactured within t
21、he last 24 months or recertified within thelast 12 months shall be used in the thermal battery.3.5 Battery pack production. The battery packs shall be manufactured in accordance withMBEU147990 and the documents listed thereon. Each production battery pack shall meet the requirementsof 3.4 and 3.5.1
22、through 3.5.8 as outlined in table I. Failure of any battery pack to meet the requirements of3.4 and table I shall result in rejection of that battery pack.3.5.1 Visual inspection. Battery packs shall be free of the following defects: illegible, missing orinaccurate identification markings, damage,
23、burrs, dents, sharp edges, or other defects which may preventinstallation of the battery pack into its mounting bracket and/or gas or electrical connections. Each batterypack shall meet the requirements of 3.4, 3.7, and Drawing MBEU147990.3.5.2 Radiographic examination. When radiographically examine
24、d in accordance with 4.3.2, the batterypack shall show proper assembly, presence of parts, sealing and proper electrical connections, properthread form, and presence of the battery chemicals. The radiographic inspection shall show no foreignmaterials present.Provided by IHSNot for ResaleNo reproduct
25、ion or networking permitted without license from IHS-,-,-MIL-DTL-82909A (OS)43.5.3 Leakage. The leakage rate of each thermal battery, prior to being installed into the battery packmanifold, shall not exceed 1.0 x 10-5 cc/sec of air when tested in accordance with 4.3.3.3.5.4 Polarity. Each thermal ba
26、ttery in the battery pack shall have a polarity that matches the power andstarter stack positive and negative lead configuration when tested in accordance with 4.3.4.TABLE I. Production inspections.Test Sequence TestParagraphRequirementParagraph1. Visual 4.3.1 3.5.1, 3.72. Radiographic Inspection 4.
27、3.2 3.5.23. Leakage 4.3.3 3.5.34. Polarity 4.3.4 3.5.45. Insulation Resistance 4.3.5 3.5.56. Dielectric Measurement 4.3.6 3.5.67. Firing Pin - 3.5.78. Actuation 4.3.13 3.5.83.5.5 Insulation resistance. Each battery in the battery pack shall have a resistance greater than 1megohm between the leads to
28、 case and between each set of output leads when tested in accordance with4.3.5.3.5.6 Dielectric measurement. Each battery in the battery pack shall not have a current drain exceeding0.1 milliampere for a 60-second period between the leads to case and between each set of output leadswhen tested in ac
29、cordance with 4.3.6.3.5.7 Firing pin. Each firing pin shall have free movement (without O-ring installed) and properalignment and protrusion in the manifold. This shall be verified during assembly of each firing pin in themanifold.3.5.8 Actuation. The number of firing mechanisms selected from the ma
30、nifold assembly production lotfor the test shall be in accordance with table V. The retained sample shall be ignored. The mechanism shallshear between 400 to 650 psig when subjected to an onset rate of 20,000 to 40,000 psig/sec of air pressureto the inlet port when tested in accordance with 4.3.13.
31、Failure to meet this requirement shall causerejection of the lot. Any mechanism subjected to this test shall be discarded or certified acceptable byquality assurance before it is reworked for use.3.6 Battery pack performance. Battery packs shall meet all requirements of 3.6.1 through 3.6.8 and theac
32、ceptance criteria of 4.4.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-82909A (OS)53.6.1 Vibration. The battery pack shall not initiate or incur any internal/external damage or degradationwhen vibration cycles are applied in accordance with
33、 4.3.7.3.6.2 Shock. The battery pack shall not initiate or incur any internal/external damage or degradation whena saw tooth shock is applied in accordance with 4.3.8.3.6.3 Temperature-shock/humidity/altitude (TSHA) cycling. The battery pack shall not fire or incurany internal or external degradatio
34、n or damage when a TSHA cycle is applied in accordance with 4.3.9.3.6.4 Saltfog. The battery pack shall not initiate or incur any internal/external damage nor degradationwhen a saltfog test is applied in accordance with 4.3.10.3.6.5 Six-foot drop. The battery pack shall not initiate or incur any maj
35、or internal/external damage ordegradation as a result of the six-foot drop test of 4.3.11.3.6.6 Forty-foot drop. The battery pack shall not initiate or incur any internal/external damage ordegradation which makes the battery pack unsafe for disposal as a result of the forty-foot drop test of4.3.12.3
36、.6.7 Firing mechanism test. The battery pack shall not actuate upon an application of 400 +0, 25 psigof air pressure to the inlet port and shall actuate between 400 to 650 psig at a rate of 20,000 to 40,000psig/sec when the firing mechanism test is applied in accordance of 4.3.13.3.6.8 Functioning.
37、The battery pack shall meet the requirements of 3.6.8.1 and 3.6.8.2 when fired inaccordance with 4.3.14.3.6.8.1 Rise time. Each battery in the battery pack shall be initiated and reach 22 volts within 105milliseconds (ms) at 200F and within 130 ms at 65F.3.6.8.2 Current.3.6.8.2.1 Constant. Each batt
38、ery in the pack shall supply a continuous load of 0.95 amp 1% for the totalbattery life of 225 seconds.3.6.8.2.2 Pulsing. Each battery in the pack shall supply twenty-two 8-amp 1% pulses with a duration of10 ms at the times specified in table II.3.6.8.3 Voltage. Each battery in the battery pack shal
39、l have a maximum voltage output of 60 volts and aminimum voltage output of 22 volts.3.6.8.4 Actuation pressure. The battery pack shall initiate between 400 to 650 psig with an airapplication rate of 20,000 to 40,000 psig/sec.3.6.8.5 Activation indicator. Each battery in the battery pack upon initiat
40、ion shall have its activationindicator turn from white to black or pink to purple by the end of the 225 seconds.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-82909A (OS)6TABLE II. Pulsing profile parameter.PulseNumberTime (Second) PulseNumb
41、erTime (Second)1 0.220 12 100.152 0.320 13 100.203 0.450 14 100.214 0.650 15 160.005 0.660 16 160.156 3.110 17 160.207 60.00 18 160.218 60.15 19 224.009 60.20 20 224.1510 60.21 21 224.2011 100.00 22 224.213.7 Workmanship. The battery pack shall be constructed and finished in a manner to assure compl
42、iancewith all requirements of this specification. Particular attention shall be directed to dimensions, finishes,sealing, and assembly operations.4. VERIFICATION4.1 Classification of inspections.a. First article inspection (see 4.2.1)b. Production inspection (see 4.2.2)c. Lot acceptance inspection (
43、see 4.2.3)4.2.1 First article inspection. Unless otherwise specified in the contract or purchase order (see 6.2), afirst article sample of 36 battery packs conforming to Drawing MBEU147990 shall be subjected to firstarticle testing. Thirty-three of these battery packs shall be expended in the tests
44、listed in table III and threebattery packs shall be retained for investigative purposes. Any damage inflicted by the environmentaltreatments which would adversely affect the performance of the item in service application shall be causefor rejection of the first article sample. Any further production
45、 prior to notification by the contractingagency of first article sample acceptability shall be at the contractors risk. Failure of any battery pack tocomply with the requirements of section 3 shall be cause for rejection of the first article represented.4.2.2 Production inspection. All production ba
46、ttery packs manufactured under the contract shall beinspected and screened for defects. Battery packs failing to meet the requirements that are listed in table Ishall be rejected and removed from the lot.4.2.3 Lot acceptance inspection. Lot acceptance inspection shall consist of the examinations and
47、 testsspecified in table IV. Failure of any sample battery pack to comply with the requirements listed in table IVshall be cause for rejection of the lot represented. Packaging defects shall be corrected before acceptance.Provided by IHSNot for ResaleNo reproduction or networking permitted without l
48、icense from IHS-,-,-MIL-DTL-82909A (OS)7TABLE III. First article test plan.Sample GroupTest SequenceTestPara.Req.Para.I II III IV V VI VIIVIII IXX1. Visual 4.3.1 3.5.1, 3.7 6 3 3 3 3 3 3 3 3 32. Radiographic 4.3.2 3.5.2 6 3 3 3 3 3 3 3 3 33. Leakage 4.3.3 3.5.3 6 3 3 3 3 3 3 3 3 34. Insul. Resistanc
49、e 4.3.5 3.5.5 6 3 3 3 3 3 3 3 3 35. Dielectric 4.3.6 3.5.6 6 3 3 3 3 3 3 3 3 36. Vibration1, 2 4.3.7 3.6.1 67. Shock1 4.3.8 3.6.2 38. TSHA1 4.3.9 3.6.3 39. Saltfog1 4.3.10 3.6.4 310. Six-Foot Drop1 4.3.11 3.6.5 311. Forty-Foot Drop 4.3.12 3.6.6 312. Firing Mechanism 4.3.13 3.6.7 313. Function test:65 5F70 5F200 5F4.3.14 3.6.82221111111111111113331 A visual, radiographic, insulation resistance, dielectric measurement inspections shall be conductedf
