16-T-0009_-_MIL-SPEC.pdf

MIL-A-18455C

23December1986

SUPERSEDING

MIL-A-18455B

20Pfarch1962 (See6.9)

MILITARYSPECIFICATION

ARGON,TECHNICAL

ThisspecificationisapprovedforusebyallDepartmentsandAgencies oftheDepartmentofDefense.

1. SCOPE

1.1Scope.Thisspecificationcoverstwotypesofargongasforusein inertgasshieldedelectricarcweldingofaluminum,magnesium,corrosion-resistingsteelandotheralloys.

1.2Classification.Argonshallbeofthefollowingtypesasspecified (see6.2).

TypeI - Gaseous TypeII-Liquid

2* APPLICABLEDOCUMENTS

2.1Governmentdocuments.

2.1.1Specificationsandstandards.Thefollowingspecificationsandstan-dardsforma partofthisspecificationtotheextentspecifiedherein.Unless otherwisespecified,theissuesofthesedocumentsshallbethoselistedinthe issueoftheDepartmentofDefenseIndexofSpecificationsandStandards(DoDISS) andsupplementthereto,citedinthesolicitation.

Beneficialcomments(recommendations,additions,deletions)andanypertinent datawhichmaybeofuseinimprovingthisdocumentshouldbeaddressedto:

Commander,NavalSeaSystemsCommand,SEA55Z3,DepartmentoftheNavy, Washington,DC20362-5101byusingtheself-addressedStandardizationDocument ImprovementProposal(DDForm1426)appearingattheendofthisdocumentor byletter.

AMSCN/A FSC6830

DISTRIBUTIONSTATEMENTA Approvedforpublicrelease;distributionunlimited

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Check the source to verify that this is the current version before use.

sPEcIFICATIONS

FEDERAL

RR-C-901’ -

MILITARY

MIL-V-2 -

MIL-T-704 -

MIL-S-27626 -

STANDARDS

FEOERAL

Cylinder, Compressed Gas : High Pressure, Steel DoT 3AA, and Aluminum Applications , General Specification for.

Valves , Cylinder, Gas (for Compressed or Liquefied Gases).

Treatment and Painting of Materiel.

Sampler, Cryosenic Liquid.

FEO-STD-H28 - Screw-Thread Standards for Federal Services, Section 9, Gas Cylinder Valve Outlet and Inlet Threads.

FED-STD-313 - Material Safety Data Sheets, Preparation and the Submission of .

MILITARY

MIL-STC-101 - Color Code for Pipelines and for Compressed

Gas Cylinders.

MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes.

MIL-STD-129 - Marking for Shipment and Storage.

MIL-STD-147 - Pallecized Unit Loads.

MIL-STD-141 1 - Inspection and Maintenance of Compressed Gas Cylinders.

2.1.2 Other Government publications. The following other Government

Duplications form a oart of this specification to the extent specified herein.

~nless otherwise spe;ified, the is;ues the solicitation.

I NATIONAL BuREAU OF STANDARDS

I Research paper No. 186S

Research paper No. 1381 shall be those in effect on the date of

(NBS)

- Measurement of Water in Gases by

Electrical Conduction in a Film of Hydroscopic Material and the Use of Pressure Changes in Calibration.

- Apparatus for Absorption of Gravimetric Determination of Constituents for a Gas Mixture.

(Application for copies should be

I Documents, U.S. Printing Office, Washington, DC 20402.) “ addressed to the Superintendent of

I

DEPARTMENTOFLABOR(OSHA)

CodeofFederalRegulations(CFR)

29CFR,Part1910.1200- HazardCommunicationStandard.

DEPARTMENTOFTRANSPORTATION(DOT)

CodeofFederalRegulations(CFR)

Title49,Transportation.

(ApplicationforcopiesshouldbeaddressedtotheSuperintendentof Documents,U.S.GovernmentPrintingOffice,Washington,DC20402.)

(Copiesofspecifications,standards,publicationsandotherGovernment documentsrequiredbycontractorsinconnectionwithspecificacquisition functionsshouldbeobtainedfromthecontractingactivityorasdirectedby thecontractingactivity.)

2.2Otherpublications.Thefollowingdocumentsforma partofthis specificationtotheextentspecifiedherein.Unlessotherwisespecified,the

I i&uesofthedocumentswhich-areDoDadoptedshallbethoselistedinthe issueoftheDoDISSspecifiedinthesolicitation.Unlessotherwisespecified, theissuesofdocumentsnotlistedintheDoDISSshallbetheissueofthe nongovernmentdocumentswhichiscurrentonthedateofthesolicitation.

1 AMERICANCHEMICALSOCIETY

AnalyticalChemistry-Volume26, No. 3

*’Determinationof.NitrogenContentofNobleGases-Absorption inTitaniumMetal”,byH.S.Dombrowski

I (ApplicationforcopiesshouldbeaddressedtoAmericanChemicalSociety, 1’ 115516thStreet,NW,Washington,DC2003b.)

COMPRESSEDGASASSOCIATION(CGA)

I G-11.l- CommoditySpecificationforArgon

(ApplicationforcopiesshouldbeaddressedtotheCompressedGasAssocia-tion,Inc.,500FifthAvenue,NewYork,NY10036.)

(Nongovernmentstandardsandotherpublicationsarenormallyavailable fromtheorganizationswhichprepareorwhichdistributethedocuments.These documentsalsomaybeavailableinorthroughlibrariesorotherinformational

I services.)

2.3 Orderofprecedence.Intheeventofa conflictbetweenthetextof

I thisspecificationandthereferencescitedherein(exceptforassociateddetail specifications,specificationsheetsorMSstandards),thetextofthisspecifi-cationshalltakeprecedence.Nothinginthisspecification,however,shall supersedeapplicablelawsandregulationsunlessaspecificexemptionhasbeen obtained.

3. REQUIREMENTS

3.1Composition.Theargonshallnotcontainoilorodorousortoxic impurities,andshallbeasspecifiedintable1.

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MIL-A-18455c

TA8LE 1. Composition of argon.

Percent by volume

Composit ion Minimum Maximum

Oxygen .—. - 0.005 Hydrogen --—- .005

Nitrogen -—— .005 Argon 9!3.985 -—-

3.2 Moisture content. When tested as specified in 4.4.1, the argon shall contain not more than 0.02 milligram of water vapor per liter of gas when measured at 21.1 degrees Celsius (“C) (7O degrees Fahrenheit (“F)) and 101.3 kilo-pascals (kPa) (1 atmosphere) absolute or have a dew point of -53.8°C (-65”F) or colder.

3.3 Type I, gaseous, cylinders and valves. Unless otherwise specified, the argon shall be contained in Government-owned and furnished cylinders conforming to DoT 3A or 3AA of CFR 49, parts 1OO-199 and RR-C-901. The cylinders shall be equipped with valves having outlet connection numbers 580, 677 and 680 in accor-dance with FED-STD-H28 and MIL-V-2. When specified (see 6.2) new cylinders shall be furnished by the argon contractor and shall be in accordance with RR-C-901 and equipped with valves in accordance with MIL-V-2. When specified (see 6.2) the argon shall be contained in contractor owned DoT approved cylinders, I 3,3.1 Cylinder serviceability. Government or contractor owned and furn-

1, ished cylinders shall be inspected; maintained and reconditioned in accordance with MIL-sTD-1411 to meet the requirements of this specification and CFR Title 49, I parts 100-199. The services to be performed shall be verified and deemed necessary by the applicable Government quality assurance representative or a qualified agent of the purchaser prior to their accomplishment.

3.3.2 Painting. Unless otherwise specified (see 6.2), Government owned and furnished cylinders for argon shall be cleaned, treated and painted in accordance with MIL-T-704. Onless otherwise specified (see 6.2), each DoD cylinder shall be coded aridmarked in accordance with MIL-STD-101.

3.3.3 Valves. Unless otherwise specified (see 6.2), replacements for defective valves in Government owned and furnished cylinders shall be contractor furnished from a qualified source listed on the QPL for MIL-V-2.

3.3.4 Filling pressures. Cylinders shall be charged to the pressure permitted (corrected to 21.1”C) by the markings cold stamped into the shoulder of the cylinder in accordance with the CFR requirements. Cylindera except those owned by the U.S. Navy ❑ay be filled to a pressure of 10 percent in excess of the stamped service pressure if the cylinder meets or exceeds the minimum requirements of 173.302c, CFR Title 49.

3.4 Ty~e 11, liquid, containers. Type II, liquid argon, shall be contained in either contractor owned or Government owned insulated containers or tank trucks as specified (see 6.2). Containers shall be in accordance with 49 CFR, 171-190.

3.4.1 Containermaintenance.Unlessotherwisespecified(see6.2), containersthatrequiremaintenanceshallbeprocessedbythecontractorfor serviceabilitytomeettherequirementsofthisspecificationand49CFR,171-190.

3.5 Materialsafetydatasheet(MSDS).Thecontractingactivityshallbe providedamaterialsafetydatasheet(MSDS)at thetimeofthecontractaward.

TheMSDSshallbeprovidedinaccordancewiththerequirementsofFED-STD-313and 29CFR1910.1200,HazardCommunication.WhenFED-STD-313isatvariancewiththe CFR,29CFR1910.1200shalltakeprecedence,modifyandsupplementFED-STD-313.

TheMSDSshallbeincludedwitheachshipmentofthematerialcoveredbythis specification.

4. QUALITYASSURANCEPROVISIONS

4.1Responsibilityforinspection.Unlessotherwisespecifiedinthe contractorpurchaseorder,thecontractorisresponsiblefortheperformanceof allinspectionrequirementsasspecifiedherein.Exceptasotherwisespecified inthecontractorpurchaseorder,thecontractormayusehisownoranyother facilitiessuitablefortheperformanceoftheinspectionrequirementsspecified herein,unlessdisapprovedbytheGovernment.TheGovernmentreservestheright toperformany oftheinspectionssetforthinthespecificationwheresuch inspectionsaredeemednecessarytoassuresuppliesandservicesconformto prescribedrequirements.

4.1.1Responsibilityforcompliance.All.itemsmustmeetallrequire-.

mentsofsections3and5. Theinspectionsetforthinthisspecificationshall

. becomeapartofthecontractor’soverallinspectionsystemorqualityprogram.

Theabsenceofanyinspectionrequirementsinthespecificationshallnotrelieve the”contractoroftheresponsibilityofassuringthatallproductsorsupplies submittedtotheGovernmentforacceptancecomplywithallrequirementsofthe contract.Samplinginqualityconformancedoesnotauthorizesubmissionofknown defectivematerial,eitherindicatedoractual,nordoesitcommittheGovernment toacceptanceofdefectivematerial.

4.2 Sampling.

4.2.1Inspectionlot.

4.2.1.1TYPe 1argon.Everycylinderfilledfromthesamesourceonthe samedayandofferedfordeliveryat-onetimeshallbeconsidereda lotfor purposesofqualityconformanceinspection.

4.2.1.2TypeIIargon.TheentireamountoftypeIIargonsuppliedinone shippingcontainershallbea lot.

.4.2.2Samplingforexaminationoffilledcylinders.A sampleoffilled cylindersshallbeselectedatrandomfromeachlotinaccordancewith MIL-STD-105atinspectionlevelI,andacceptablequalitylevel(AQL)of2.5 percentdefectivetoverifyconformancewithallrequirementsofthisspecifica- 1 tionregardingtheclosure,markingandotherrequirementsnotinvolvingtests.

MIL-A-18455c

4.2.3 Sampling for test. Sample cylinders

inspection lot in accordance with MIL-STD-105 at of 6.5 percent for the tests specified in 4.3.2.

sampled with a sampler, meeting the requirements equivalent.

shall be selected from each inspection level S-1 and AQL Type II liquid argon shall be of MIL-s-27626 or functional

4.3 Quality conformance inspection. Quality conformance inspection shall be as follows:

4.3.1 Examination of filled cylinders. Each sample cylinder selected in accordance with 4.2.2 shall be examined for defects of the cylinder and the closure, for evidence of leakage and odor, and for unsatisfactory marking. The pressure of each type I sample filled cylinder shall also be measured as speci-fied in 4.4.5. Any cylinder in the sample, having one or more defects, or under required fill shall not be offered for delivery. If the number of defective cylinders in any sample exceeds the acceptance number for the appropriate sampling plan in accordance with MIL-STO-1O5, this shall be cause for rejection of the lot represented by the sample.

4.3.2 Inspection. Argon gas taken from each of the sample cylinders selected in accordance with 4.2.3 shall be subjected to the tests as specified in 4.4.1 through 4.4.4.

4.4 Tests.

4.4.1 Moisture impurity. Argon gas from each sample filled cylinder shall be tested for moisture by one of the methods specified herein after the cylinder valve, regulator and test connections have been purged by withdrawing approxi-mately 28 liters (L) (1 cubic foot (ft3)) of gas. In case of dispute, the accelerated gravimetric method, National Bureau of Standards research paper

no. 1381, shall be the standard referee test when conducted as specified herein.

(a) Accelerated gravimetric method. The accelerated gravimetric method shall be determined by measurement of the increase in weight of phosphorous pentoxide when subjected to a flow of a measured volume of argon as specified hereinafter. Invert the cylinder to be tested and place it in a suirable rack. Connect the cylinder to the test apparatus by the means of a length of bent, seamless, corrosion-resisting steel tubing and a high pressure union with needle valve and a glassi-towetal joint (no rubber shall be used; a sleeve joint secured with thermoplastic is acceptable). A mercury safety valve shall be connected between the low pressure outlet of the needle valve and the first absorber. The steel tubing shall be so fabricated that it will pass through two water baths at room temperature. The aPParatus shall consist of three U-t”be absorbers f“ Series, each 10.2 centimeters (cm) (4-inches) high and 1.3 cm (1/2 inch) in diameter, containing phosphorous pentoxide on glass wool and connected through a water-saturator to a calibrated wet test meter of 1.4 L (1/20-ft3) size equipped with a 1 liter dial. The needle valve connecting the cylinder to the absorber shall be flushed with argon so that only gas discharged from the cylinder will pass through the absorber. The absorbers shall be brought to constant weight in a stream of dry argon

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I beforetheyareweighedsotheywillbeatalltimesfilledwith argon.beforeeachweighingoftheabsorberstheyshallbe openedmomentarilytotheair,closed,andcleaned.Onehundred litersofgaseousargonshallbedischargedthroughtheapparatus ata ratenottoexceed0.4literperminute.Thetotalvolume ofgasmeasuredshallbecorrectedtoconditionsof21.1°Cand 101:3kPapressure.Themoisturecontentshallthenbecalcu-latedfromthegaininweightoftheabsorbentsandexpressedin milligramsperliterofgasasmeasuredat21.1°Cand101.3kPa.

Themoisturecontentshallbecomputedintermsofmilligrams perliteratstandardconditions.

(b)Freeze-outvolumetricmethod.Moisturecontentshallbemeasured bydeterminingtheamountofwatercollectedina trapsubjected toliquidairornitrogentemperatureafterameasuredvolume ofargonhasbeenpassed.

(c)Electricalconductivity-vaporpressuremethod.Moisturecontent ofargonmaybedeterminedbytheelectricalconductivity-vapor pressuremethodas specifiedintheNationalBureauofStandards researchpaperno.1865.

(d)Directreadingdewpointmethod.Moisturecontentofargonmay bemeasuredbyusingdirectreadingdewpointmeasurementequip-ment.

(e)Moisturecontentmaybedeterminedbyanymethodregularlyused bythecontractorandapprovedbythecontractingactivity.

4.4.2Oxygenimpurity.Theargongasfromeachsamplefilledcylindershall besubjectedtooneofthefollowingtestproceduresfordeterminationoftheoxy-genimpurity.Ifanycylindersampleofargongasfailsinanyrequirement,this shallbecauseforrejectionofthelotoffilledcylinders.

(a)Heat.ofreactionmethod.Anexcessofhydrogen(oxygenfree) shallbemixedwiththeargwnsampleandpassedovera palladium catalyst.Theincreaseintemperatureshallbemeasuredand, bycalculation,theoxygendeterminedforthemeteredflowrate ofargon.

(b)Combustionmethod.A smallamountofoxygen-freehydrogen (previouslydried)shallbemixedwiththesample(previously dried).Thenbycombustion,theoxygenshallbecombinedwith hydrogentoformwatervapor.Thewatershallbedeterminedby eitheroneofthemethodsasspecifiedin4.4.1.Thequantity ofoxygenshallbecalculatedfromthewatervaporformedand thequantityofthesampleused.

(c)Bulbmethod.-A clearglasselectriclightbulbshallbemodified byfusingtoit,inletandoutletconnectionsofshortlengths ofglasstubing.Theargontobetestedshallbepassedthrough thebulbuntila representativesampleisobtainedandthenthe gasflowshallbestopped.An18volt(V)electricalcurrent shallbeappliedtothetungstenfilamentfor1minute.The currentshallthenbeturnedoffandthefilamentflashedat85 to100v. Emissionofsmokeattheinstantofflashingindicates thattheargoncontainsmorethan8 partspermillionoxygen.

Ifthistestindicatespresenceofoxygenitwillbenecessary toretestargonbymethods(a)and(b)above.

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FIIL-A-18L55C

(d) Oxygen impurity may be determined by any other method regularly used by the contractor and approved by the contracting activity.

4.4.3 Hydrogen impurity. The argon gas from each of the sample filled cylinders shall be subjected to one of the following test methods for the deter-

1 mination of hydrogen impurity. If any cylinder sample of argon gas fails in any requirement, this shall be cause for rejection of the lot of filled cylinders.

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I (a) Heat of reaction method. Test shall be conducted as specified i“ 4.4.2(a) for oxygen, except that an excess of hydrogen-free

I oxygen is mixed with the argon sample and passed over a palladium catalyst.

I (b) Combustion method. Test shall be conducted as specified in 4.4.2(b) for oxygen impurity, except that small amounts of hydrogen-free oxygen (dried) shall be “burned”’with a metered amount of argon sample (previously dried) and the amount of water vapor formed shall be determined by one of the methods specified in 4.4.1. The quantity of hydrogen shall be calculated from the water vapor formed and the quantity of the sample used.

(c) Hydrogen impurity may be determined by any other method regularly used by the contractor and approved by the contracting activity,

4.4.4 Nitrogen impurity. Argon gas from each of the sample filled cylinders shall be subjected to one of the following test methods for determi-nation of nitrogen impurity. If any cylinder sample of argon gas fails in any requirement, this shall be cause for rejection of the 10C of filled cylinders.

(a) Nitrogen impurity may,be determined by the method as specified in ACS Analytical Chemistry, volume 26, no. 3.

(b) Argon gas from the sample cylinder shall be passed through a thermal conductivity cell of high sensitivity where the nitrogen content is determined by comparison with argon of known nitrogen content.

(c) Nitrogen impurity may be determined by any alternate method regularly used by the contractor and approved by the contracting activity.

4.4.5 Filling pressure. The gauge pressure of each type I sample cylinder shall be measured in accordance with MIL-STD-1411. Pressure-temperature conver-sions of CGA G-11.l shall be used.

4.5 Inspection of packagin~. Sample packages and

tion of the preservation~ackaging, packing and marking shall be in accordance with the requirements of section specified therein.

5. PACKAGING

(The packaging requirements specified herein apply ment acquisition. ) packs, and the inspec-for shipment and s;orage 5 and the documents only for direct Govern-

I ?lIL-A-18455C

5.1PackinglevelA. Whenspecified(see6.2),eachfilledcylinder, whetherGovernment-ownedorcontractor-furnished,shallbepackedinaccordance withtheCFR49.

5.1.1Palletization.Whenspecified(see6.2),thecylindersshallbe palletizedinaccordancewithMIL-sTD-147.

5.2Marking.Cylindersandcontainersshallbemarkedinaccordancewith theCFR49and29CFR,Part1910.1200.Whenspecified(see6.2),eachcylinder shallalsobemarkedwitha completedescriptionofthecontentsasspecifiedin thecontractororderunderwhichtheshipmentismade.Thisinformationshall bemarkedona suitabletagfirmlywiredtothecylindercap.

5.2.1Specialmarking.Inadditiontothemarkingspecifiedin5.2,each cylinderandpalletizedloadshallbemarkedinaccordancewithMIL-STD-129and DoTRegulations.TherequirementsofMIL-STD-101shallapplyforGovernment-owned cylinders.

5.2.2Commoditytag.Eachliquifiedcontainershallhavea commoditytag attachedtothefillvalve.Thecommoditytagshallidentifyfillplant,product, datefilled,containernumber,andnameoffiller.

5.3 shallbe

6.

Materialsafetydatasheet.A copyofthematerialsafetydatasheet attachedtotheshippingdocumentforeachdestination(see3.5).

NOTES

6.1 Intendeduse.Theargoncoveredinthisspecificationisintendedfor useininertgasshieldedelectricarcweldingofaluminum,magnesium,corrosion-resistingsteelandotheralloys.

6.2Orderingdata.Acquisition’documentsshouldspecifythefollowing:

(a)Title,numberanddateofthisspecification (b)Quantityandtypeofargonrequired.

(c)Whengascontractoristofurnishnewgascylinders(see3.3).

(d)Whengasistobefurnishedi.ncontractorownedcylinders

(see3.3).

(e)whencylinders shall be cleaned,treatedandpaintedin accordancewithMIL-T-704(see3.3.2).

(f)Whencylinderistobecolorcodedotherthaninaccordance

I withMIL-STD-101(see3.3.2).

(g)Whenreplacementvalveisotherthana QPLvalveinaccordance withMIL-V-2(see3.3.3).

(h)Whenliquidistobefurnishedincontractorownedcontainers

(see3.4).

(i)Maintenancerequiredforliquidcontainers(see3.4.1).

(j)Applicablelevel ofpackingrequired(see5.1).

(k)Whethercylindersshouldbepalletized(see5.1.1).

(1)Whethercylindersshouldbemarkedwithdescriptionof contents(see5.2).

6.3 Purchase basis. The basis of ~urchase should be the cubic foot of argon measured at atmosphere (1.4.7lblin ) pressure and 70”F.

6.4 Cylinder contents. The contents of a full cylinder should be based on charts from the National Bureau of Standards miscellaneous publication no. 71 on the compressibility of gases, corrected for the actual volume of the cylinder filled.

6.5 Material safety data sheets. Contracting officers will identify those activities requiring copies of completed material safety data sheets prepared in accordance with FED-STD-313 and 29 CFR 19113.1200. The pertinent Government mailing addresses for submission of data are listed in appendix B of FED-STD-313.

6,6 Container services. The gas contractor should furnish at no additional cost, all services which are required at each and every filling of a container to comply with applicable regulations and normal good practice. Such services would include, but not be limited to, all inspection, testing, evacuation, and handling services required for.the gas supplied.

6.7 Schedule of fees. A schedule of allowable fees should be specified by the purchaser for the gas contractor’s perfOr~nce Of service such += the replace-ment of valves, valve parts, and cylinder caps, hydrostatic testing, cleaning, painting, color/coding, marking, and handling of.unserviceable containers as required. All materials and components for these services the gas contractor.

sho~ld be furnished by to of

6.8 Subject term (key word) listing.

Argon gas Containers Cylinders Gaseous Liquid

6.9 Changes from previous issues. Asterisks are nOt

identify changes with respect to the previous issue due the changes.

used in this revision to the extensiveness

Custodians : Preparing activity:

Army - MI Navy - SH Navy - SH (Project 6830-0144) Air Force - 68

Review activities:

DLA - :GS

Navy - MC

User activities:

Army - ME

Navy - AS, YD

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INSTRUCTIONS:Ina continuingeffortto makeourstandardizationdocumentsbetter,theDoDprovidesthisformforw in submittingcommentxandsuggestionsforimprovements.Allusersofmilitarystandardizationdocumen~areinvitedtoprovide suggestions.l%isformmaybedetached,foldedalongthelinesindicated,tapedalongthehxxwedge(DONOTSTAPLE),md tiled. Inblock5, beasspecificaspossibleaboutparticularproblemareassuchaswordingwhichrequiredinterpretation,was toorigid,restrictive,100SS,ambiguous,orwasincompatible,andgiveproposedwordingchangeswhichwouldalleviatethe problems.Enterinblock6 anyremarksnotrelatedto a specificparagraphof thedocument.If block7 isfiUedout,an acknowledgementwillbemailedto”YOUwithin30 daysto letYOUknowthatyourcommentswerereceivedandarebeing considered.

NOTE:‘Ilk.formmaYnotbeusedto requestcopiesofdocumenti,norto requestwaivers,deviations,orclarificationof ●pacificationrequirementsoncurrentcontracta.Commentssubmittedonthisformdonotconstituteorimplyauthorization to waiveanyportionofthereferenceddocument(s)orto amendcontractualrequirement.

(Fold dons thu line)

(Fold along thkline,!

DEPARTMENTOFTHENAVY

COMMANDER

NAVALSEASYSTEMSCOMMAND(SEA 5’523)

DEPARTMENTOFTHENAVY 111111

WASHINGTON,DC 20362-5101

OFFICIAL8USINESS

PENALTYFORPRIVATEUSE$300 BUSINESSREPLYMAIL

FIRSTCLASS PERMITNO.12503 WASHINGTONO C

PO=AGEWILLBEPAIDBYTHEDEPARTMENTOFTHENAVY

COMMANDER

NAVALSEASYSTEMSCOMMAND(SEA55Z3)

DEPARTMENTOFTHENAVY

WASHINGTON,DC 20362-5101

uNOPOSTAGE

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STANDARDl~TION OOCUMENT IMPROVEMENT PROPOSAL (SC, /a.trucrions - Reverse Side)

CLIMENT NUMBER z. OCIC”MENT TITLE

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