MIL-C-83409-1999 MILITARY SPECIFICATION COATINGS,

NOTICEOFINCHPOUNDREINSTATEMENTMIL-C-83409NOTICE33August1999SUPERSEDINGNOTICE215May1999MILITARYSPECIFICATIONCOATINGS,VISOR,POLYCARBONATE,FLYINGHELMETMIL-C-83409,includingAmendment1,dated14March1986,areherebyreinstatedandmaybeusedforacquisition.Custodians:PreparingActivity:AirForce-11DLA-CT(Project8415-0172)Reviewactivities:AirForce–82,99AMSCN/AFSC8415DISTRIBUTIONSTATEMENTA.Approvedforpublicrelease;distributionisunlimited.INCH-POUNDNOTICEOFCANCELATIONMIL-C-83409NOTICE215May1999MILITARYSPECIFICATIONCOATINGS,VISOR,POLYCARBONATE,FLYINGHELMETMIL-C-83409,includingAmendment1,dated14March1986,isherebycanceledwithoutreplacement.Custodians:Preparingactivity:DLA-CTAirForce-11Reviewactivities:AirForce-11,82,99AMSCN/AFSC8415DISTRIBUTIONSTATEMENTA:Approvedforpublicrelease;distributionisunlimited.MIL-C-83409(USAF)AMENDMENT-15February1974MILITARYSPECIFICATIONCOATINGS,VISOR,POLYCARBONATE,FLYINGHELMETThisamendmentformsapartofMilitarySpeci-ficationMIL-C-83409(USAF)dated9February1973.Page2,paragraph3.5:Deleteandsubstitute:“3.5.Performance.ThecoatedvisorshallmeettheopticalrequirementsofMIL-V-43511,paragraphs3.4.1through3.4.8”.Page2,paragraph3.6.1:Deleteandsubstitute:“3.6.1Abrasionresistance.AfterbeingsubjectedtotheabrasiontestsinaccordancewithSeaction4,theincreaseinhazeshallnotexceed6percentandthedecreaseintransmittanceshallnotexceed4percent.”.Page3,paragraph4.2.2:Deletethelastsentenceandsubstitute:“TheabrasiontestwillbeperformedinaccordancewithMethod1092ofFed-STD-406usingCS10Fcalibrasewheelsfor50cyclesundera500gramload.”.Page3,paragraph4.2.3.1:Deleteandsubstitute:“4.2.3.1Adhesiontestmethod.Atape,3M670(madebythe3MCompany),isfirmlyappliedtothetestspecimen.Thetapeisremovedusingasnapmotionappliedat90degreestothetestspecimen.”.Page3,paragraph4.2.3.2:Delete:“240hours(10cycles)”andsubstitute:“120hours(5cycles)”.CUSTODIAN:PREPARINGACTIVITY:AirForce–11AirForce–11PROJECTNUMBER:8415-F908FSC8415MIL-C-83409(USAF)9February1973MILITARYSPECIFICATIONCOATINGS,VISOR,POLYCARBONATE,FLYINGHELMET1.SCOPE1.1Scope.ThisspecificationcoverstheopticalanddurabilityrequirementsforabrasionresistingcoatingsasappliedpolycarbonatevisorsconformingtoMIL-V-43511.2.APPLICABLEDOCUMENTS2.1Thefollowingdocumentsoftheissueineffectondateofinvitationforbidsorrequestforproposalformapartofthisspecificationtotheextentspecifiedherein:SPECIFICATIONSMilitaryMIL-V-43511Visors,FlyingHelmet,PolycarbonateSTANDARDSFederalFED-STD-406Plastics,MethodofTestingMilitaryMIL-STD-810EnvironmentalTestMethods(Copiesofspecifications,standards,drawingsandpublicationsrequiredbysuppliersinconnectionwithspecificprocurementfunctionsshouldbeobtainedfromtheprocuringactivityorasdirectedbythecontractingofficer.)FSC8415MIL-C-83409(USAF)2.2Otherpublications.Thefollowingdocumentsformapartofthisspecificationtotheextentspecifiedherein.Unlessotherwiseindicated,theissueineffectondateofinvitationforbidsorrequestforproposalshallapply.AMERICANSOCIETYFORTESTINGMATERIALS(ASTM)G23WeatheringofPlastics(CopiesofASTMpublicationsmaybeobtainedfromtheAmericanSocietyforTestingandMaterials,1916raceStreet,Philadelphia,Pennsylvania19103.)3.REQUIREMENTS3.1Preproductionsample.ThepreproductionsamplerequirementsshallbeasspecifiedinMIL-V-43511.3.2Designanddimensions.ThedesignanddimensionsofthecoatedvisorshallbeasspecifiedinMIL-V-43511.3.3Materialsandcomponents3.3.1Plasticandspring.PlasticandspringrequirementsshallbeasspecifiedinMIL-V-43511.3.3.2Abrasionresistantcoating.Thecoatingshallbeaclearproductwhichmeetstheabrasionresistance,adhesion,andenvironmentalresistancerequirementsspecifiedherein.3.4Areasofvision.TheareasofvisionshallbeasspecifiedinMIL-V-43511.3.5Performance.ThecoatedvisorshallmeettherequirementsasspecifiedinMIL-V-43511.3.6Abrasionresistantcoatingdurability3.6.1Abrasionresistance.AfterbeingsubjectedtotheabrasiontestsinaccordancewithSection4,theincreaseinhazeshallnotexceed3percentandthedecreaseintransmittanceshallnotexceed4percent.3.6.2Coatingadhesion3.6.2.1BeforeandafterenvironmentalexposurethecoatingshallshownolossinadhesionwhentestedinaccordancewithSection4.2MIL-C-83409(USAF)3.6.3Weatheringresistance3.6.3.1Thecoatedvisorsshallshownoyellowingorotherchange,orlossofcoatingadhesion.4.QUALITYASSURANCEPROVISIONS4.1Responsibilityforinspection.Unlessotherwisespecifiedinthecontractorpurchaseorder,thesupplierisresponsiblefortheper-formanceofallinspectionrequirementsasspecifiedherein.Exceptasotherwisespecifiedinthecontractororder,thesuppliermayusehisownoranyotherfacilitiessuitablefortheperformanceoftheinspectionrequirementsspecifiedherein,unlessdisapprovedbytheGovernment.TheGovernmentreservestherighttoperformanyoftheinspectionssetforthinthespecificationwheresuchinspectionsaredeemednecessarytoassuresuppliesandservicesconformtoprescribedrequirements.4.1.1AllofthequalityassuranceprovisionsasspecifiedinMIL-V-43511shallapplytothecoatedvisorsinadditiontotheprovisionsstatedherein.4.2Abrasionresistantcoatingdurability4.2.1Testspecimens.Thespecimensforconductingthecoatingdurabilitytestsshallbeflatpanelswhicharecoatedbythesameprocessduringa