1、IEm!milMIL-M-24519E(NAVY)3 March 1992SUPERSEDINGtiIL-14-2L519D(SH)distribution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-II-24519E(NAVY)m DescriptionGPT-20F - Thermoplastic polyester (polytetramethy lene terephthalate or polyGC
2、T-30F -GPT-30F -GAT-22F -GET-30F -GET-35F -GMT-40F -GLT-10F -GLT-20F -GLT-30F -GST-40F -MLT-20F -GLCP-30F -GLCP-50F -1, 4 butylene terephthalate compound, 20 percent glassreinforced, flame resistant.Thermoplastic polyester (1, 4-cylohexylenedime thyleneterephthalate -(PCT) compound, 30 percent fiber
3、 reinforced, flameretardant.Thermoplastic polyester (polytetramethy lene terephthalate or poly1, 4 butylene terephthalate) compound, 30 percent glassreinforced, flame resistant.Thermoplastic, polyarylether compound, 22 percent glassreinforced, flame resistant.Thermoplastic polyester (polyethylene te
4、rephthalate) compound, 30percent glass reinforced, flame resistant.Thermoplastic polyethylene terephthalate compound, 35 percentglass reinforced, flame retardant.Thermoplastic polyester (polytetramethy lene terephthalate or poly1, 4 butylene terephthalate) compound, 40 percent glass andmineral reinf
5、orced, flame resistant.Thermoplastic polyetherimide compound, 10 percent glassreinforced, flame resistant.Thermoplastic polyetherimide compound, 20 percent glassreinforced, flame resistant.Thermoplastic polyetherimide compound, 30 percent glassreinforced, flame resistant.Thermoplastic polyphenylene
6、sulfide compound, 40 percent glassreinforced, flame resistant.Mineral plastic polytherimide compound, 20 percent mineral filled,flame resistant.Thermoplastic polyester, 30 percent glass reinforced liquidcrystalline.Thermoplastic polyester, 50 percent glass reinforced liquidcrystalline.Provided by IH
7、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-11-24519E(NAVV)2. APPLICABLE DOCUtiSNTS2.1 Government document%.2.1.1 !2cherGovernment documencs. drawjJg;4.13.63.44.03.53.5ssipotlmfactor:810Hz0.00s0.0070.01210Hz0.03O.ow0.012helectrlcstr.zmzth:short-clamteztboo
8、450450Short-tiimttzt375430430iielectrlcbrenkdcnm:Short-tlmmtest505656Short-i(mtesturfacaresistance1.OX1OQrackingindex1s0Oxicitybi!mheated:Cerbmdloxlde15.000S,ooo250 20 20 20 50 so2,s00S,ooo2002s010020M20102050so15,000 1,000500 50 so 100lS,000 1,000Soo 50 50 100Parts per million (P/m)Carlmnmmxlde#Jme
9、Ola Aldehydes02H.CHOCyanIdaasHCNOaldesofnltrogmmIiozHydrogenchlorlda1;000 2,50050 60 100250.2s0202020202020soso100soIso10Iso50soProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-24519E(NAVY)4. QUALITY ASSURANCE PROVISIONS4.1 Resvonsibilitv for in
10、spection. Unless otherwise specified in thecontract or purchase order, the contractor is responsible for the performance ofall inspection requirements (examinations and tests) as specified herein. Exceptas otherwise specified in the contract or purchase order, the contractor may usehis own or any ot
11、her facilities suitable for the performance of the inspectionrequirements specified herein, unless disapproved by the Government. TheGovernment reserves the right to perform any of the inspections set forth in thisspecification where such inspections are deemed necessary to ensure supplies andservic
12、es conform to prescribed requirements.4.1.1 Resvonsibilitv for compliance. All items shall meet all requirementsof sections 3 and 5. The inspection set forth in this specification shall becomea part of the contractors overall inspection system or quality program. Theabsence of any inspection require
13、ments in the specification shall not relieve thecontractor of the responsibility of ensuring that all products or suppliessubmitted to the Government for acceptance comply with all requirements of thecontract. Sampling inspection, as part of the manufacturing operations, is anacceptable practice to
14、ascertain conformance to requirements, however, this doesnot authorize submission of known defective material, either indicated or actual,nor does it commit the Government to accept defective material.4.2 Classification of inspections . The inspection requirements specifiedherein are classified as f
15、ollows:(a) Qualification inspection (see 4.3).(b) Quality conformance inspection (see 4.4)4.3 Qualification inspection. Qualification inspection shall be performedat a laboratory acceptable to the Naval Sea Systems Command (NAVSSA)Qualification inspection shall consist of the tests specified in tabl
16、es I and II.4.3.1 Suecimens for qualification inspection. Tests shall be performed onstandard test specimens molded by the manufacturer of each compound for whichqualification is required. The number of test specimens to be tested shall be asspecified in tables II and III.4.3.2 Preparation. Specimen
17、s shall be prepared for tests as specified in4.5.1.4.4 Qualitv conformance inspection. Quality conformance shall be asspecified in table IV. Tests shall be performed at the manufacturers plant onstandard specimens molded by the manufacturer from each batch of compound to beprovided to molders for pr
18、oduction of molded parts under this specification.4.4.1 u. A batch shall be considered a homogeneous unit of finishedmolding compound manufactured at one time.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-rAnlFIIS-11”“d.n+*l.-lnene4“,“,.1ll.-.*T”T”
19、a71*.-.TeztImttlcdSpechrctnCol-dltl.mllwPropertytobetestedNndlfledkllmtmrpr.amdmeASllfbformanddimtnalc+mtestzd(see4.S.1.5)Un!tofvalueArcrcslstanmD4934-inchdlak,1/8idthick3ASec2+-ds(mlnlrtmaverae)Cmpmsslventrcmth,06931by1/2w1/2lmhsE-LS.150+C-96123150lb/ln2(Minimaaverose)10prcmtdcf(eztlmOielcctrlccomt
20、ant:.3IAt10HzE-W50+deso1506-inchdisk,1/8Inchthlc.k3t-4a150+o-z423MaximaveraeAt10Hz3E-4815D+des3E-L8150*0.Z4123Oisspatlcmfactor:s:;E-48/504so1s04.lrtchdisk,1/8inchthick3E-481SO+D-241Z3H2xluuaaverage3E-4815D+dez3E.48150?0-ZV23Dielectricstrength:Short-timetesto1494.5.2.184.inchdlak,1/8lrchthick3Short-t
21、l,mtestE-b815WC+61Z3150Voltpermil(minim.m4.5.2.1.14.inchdisk,1/8idthick3E.4W5*0.48150average)Olelectrlcbreokdobm:Short-tinstestD149no special conditioning.Condition C - Humidity conditioning.Condition D - Immersion conditioning in distilled water.Condition E - Temperature conditioning.Condition desi
22、ccation - Desiccation condition, cooling over silica gelor calcium chloride in a desiccator at 23degrees Celsius (“C) for 16 to 20 hours aftertemperature conditioning.4.5.1 .5.2 Decimation. Conditioning procedures shall be designated asfollows:(a) A capital letter indicating the general condition of
23、 the specimen;that is, as received, humidity, immersion, or temperatureconditioning.(b) A number indicating in hours the duration of the conditioning.(c) A number indicating in “C the conditioning temperature.(d) A number indicating relative humidity (R.H.), whenever R.H. iscontrolled.The numbers sh
24、all be separated from each other by slant marks, and from thecapital letter by a dash. A sequence of conditions shall be denoted by use of aplus (+) sign between successiveExamples:Condition C-96/23/50 -Condition D-48/50 -Condition E-48/50 -conditions.Humidity condition, 96 hours at 23 t 1.l-C and 5
25、0f 2 percent R.H.Immersion condition, 48 hours at 50 * l“C.Temperature condition. 48 hours at 50 t 3“c.Condition E-48)50+C-96/23/0 - Temperature condition, 48 hours at50 i 3-C, followed by humiditycondition, 96 hours at 23 i 1.lC and50 i 2 percent R.H.4.5.2 Methods of test. Each test measurement, wi
26、th the exception ofdielectric strength, dielectric breakdown, heat resistance , and volume and surfaceresistance (see 4.5.2.1, 4.5.2.1.2, 4.5.2.5, and 4.5.2.7) shall be taken atstandard laboratory atmosphere of 23 + 1.lC and 50 i 2 percent R.H. The testmethods shall be in accordance with the applica
27、ble ASTM standard (see tables 11and IV) modified as applicable.4.5.2.1 Dielectric strength. Thermoplastic molding compounds shall betested for dielectric strength in accordance with ASTM D 149. Tests shall be madeunder oil at a frequency not exceeding 100 hertz (Hz) at the temperature of thefinal co
28、nditioning. Specimens shall meet the requirements specified in 3.2.4.14Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-M-2L519E(NAVY)6.5.2 .1.1 ShOrt-time test,. The voltage shall be increased uniformly at therate of 500 volts per second.see para
29、graph 1.2)I Specification identifier6.8 Subiect term (kev word) li.s.DielectricFlsme resistantClass reinforcedPlastics, electrical moldingPoly(cyclohexylenedimethylene)PolyarylatherPolyethylenePolyesterPolyetherimidePolyphenylene The greanishfirovn chip number falls between green chip 26096 and brov
30、nchip 24201.21Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-24519E(NAVY)6.9 Chances from urevious issue. Marginal notations are not used in thisrevision to identify changes with respect to the previous issue due to theextensiveness of the cha
31、nges.User activities: Preparing activity:Navy - AS, MC , Navy - SH(Project 5970-N678)22Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-H-26519E(NAVY)BOTTOM VIEWglM .3s1. .0s.202.SIDE VIEW FRONT vIEWFIGURE 1. $DeCinen helders. electrodes. cosc sa
32、nm.les,and humiditv chambecover - volume and surface rce teas.23Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-M-24519E(NAVY)DIRECT CURRENT SRIDGEI ,URECT CURRENT SRiDGE ,i HIGH QJWl LOW 4vL - -.IAATCf4INSULATORCWERPLATE+-SF133MENVC4JJME RESISTA
33、NC5 SURFACE RESISTANCEFIGURE 2. Arrangements for volume resistance and surface resistance testcdil?KM$NT(U3TAINABLE FROMMEGOHM BRIDGE). .* A AVOLUME RlSTANCER(MEGOHMS)=JEASURFACE RESISTANCEFIGURE 3. Circuits for measurine low values of volume and surface resistance.24Provided by IHSNot for ResaleNo
34、reproduction or networking permitted without license from IHS-,-,-STANDARDIZATION DOCUMENT IMPROVEMENT PROPOSALlNSIREJOIONS1. The preparing activity mu; complete blocks 1, 2, 3, and 8. In block 1, both she document number and revisionletter should be given.2. The submitter of this form must complete
35、 blocks 4. S, 6, and 7.3. The preparing activity must provide a reply within 30 days from receipt of the form,NOTE: This form may not be used to request copies ofdocuments,nortorequestwaivers,orclarificatiors ofrequirements on current contracts. Comments wbmitted on this form do not constitute or im
36、ply authorization towaive any potion of the referenced document(s) or to amend contractual requirements.I RECOMMEND A CHANGE: “ L!f12fEw) Z. 00CUMENT OATE (WhtMLEO)1. OOCUMENT ltlLEMOLDING P2ASTICS , ELECTRICAL , THERMOPLASTICNATURE OF CNANGE (lden puvI number a71nd hcfuds mwriw, i/ podbh. Atmch ext
37、rz fheea ,$ needed)REASON FOR RECOMMENOATION.-suaMrtlfRNAMs(bsc lascawealla+o b. ORGANIZATIONMoREss (krduck ZIPCad 6. rsLE9ntANs(aEOkas&eJ coda) 7. OATE SUS?ATUZO(1) Ccxnmertial 1(2S AUTOVOf6& acJ*). PRSPAR06C AC31VNYNAME TeChiCl pOiIIC of COCC (TpOC) : b. TELEPHONE (fncfti AIWZ Cd)C. Y. Lu (SEA 562
38、23) 1Commercial (2) AUTOVONLEASE ADDRESS ALL CORRESPONDENCE AS FOLLOWS TPOC: 703-602-3123AOORESS xiv& Zip ccdrJCommander, Naval Sea Systems Command 5 VOU 00 NOT RICEWE A REPLY WTllilN AS OAYS, COtATAfXCfefetw Ouafky and Ssandardizacion OffiieDeparcmenc of the Navy (SEA 5523) 5203 Leesburo Pike. Suite 1AE33.Falls Church. VA 220A1-3466Washinszton.DC 20362-5101 ldephone(703)756.2340AUTOVON Z89-23A0-.D Form 1426. 0 89 Predwa editimn ,m ahsO/etc. !WYWProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
