1、 ., ,a71MILITARYFITTINGS,EEElMIL-F-24787(sH)3 September 1993SUPERSEDINGMIL-H-24135A(SH) (IN PART)18 July 1986MIL-H-24136A(SH)(IN PART)18 June 1986(See 6.4)SPECIFICATIONEND, REUSABLEFOR FLEXIBLE HOSE ASSEMBLIESGENERAL SPECIFICATIONFORThis specification is approved for use within the Naval Sea Systems
2、Command, Department of the Navy, and is available for use by allDepartments and Agencies of the Department of Defense.1. SCOPE1.1 Scope. This specification covers the requirements for reusable endfittings, elbow (90) fittings and 180” return fittings for use with flexiblerubber hose in low, medium a
3、nd high pressure shipboard piping systems.1.2 Classification.1.2.1 Fitting types. The following fitting types are covered by thisspecification:Beneficial comments (recommendations, additions, deletions) and any pertinentdata which may be of use in improving this document should be addressed to:Comma
4、nder, SEA 03Q42, Naval Sea Systems Command, 2531 Jefferson Davis Hwy,Arlington, VA 22242-5160 by using the self-addressed Standardization DocumentImprovement Proposal (DD Form 1426) appearing at the end of this document orby letter.a AMSC N/A FSC 4730DISTRIBUTION STATEMENT A. Approved for public rel
5、ease; distribution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i. Fitting TypeAALBBLcCLDEELFFLFFLuScTFTM/ Type B and BL,MIL-F-z4/81(sH)Description37” Swivel to hose, straight.37 Swivel to hose, 90 elbow.Gasket seal union, male half t
6、o hose, straight. Gasket seal union, male half to hose, 90 elbow. /O-ring seal union, male half to hose, straight.O-ring seal union, male half to hose, 90” elbow.90 Elbow, hose to hose.Split clamp to hose, straight.Split clamp to hose, 90 elbow.Flange to hose, straight.Flange to hose, 90 elbow.Flang
7、e to hose, 45 elbow.180 return, hose to hose.Split clamp assemblyTailpiece, female, split clamp, silver braze.Tailpiece, male, split clamp, silver braze.gasket seal, end fittings are included for replacementpurposes only. They are not to be used in new construction.1.2.2 Fittin group. Fitting group
8、identifies the particular hose(MIL-H-24135 and MIL-H-24136) for which a specific fitting design has beenproduced. See 6.5 for group supersession data.2. APPLICABLE DOCUMENTS2.1 Government documents.2.1.1 Specifications, standards, and handbooks. The following specifica-tions, standards, and handbook
9、s form a part of this document to the extentspecified herein. Unless otherwise specified, the issues of these documents arethose listed in the issue of the Department of Defense Index of Specifications” andStandards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). a712Provided b
10、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-24787(SH).a71SPECIFICATIONSMILITARYMIL-H-775 -MIL-L-2104 -MIL-H-5606 -MIL-L-17331 -MIL-H-24135 -MIL-H-24135l -MIL-H-24135/2 -MIL-H-24135/3 -MIL-H-24135/4 -MIL-H-24135/5 -MIL-H-24135/6 -MIL-H-24135/7 -MIL-H-
11、24135/8 -MIL-H-24135/9 -MIL-H-24135/10 -MIL-H-24135/11 -Hose, Hose Assemblies; Rubber, Plastic, Fabric, orMetal (Including Tubing) and Associated Hardware:Packaging of.Lubricating Oil, Internal Combustion Engine,Tactical Service.Hydraulic Fluid, Petroleum Base; Aircraft,Missile, and Ordnance.Lubrica
12、ting Oil and Gear, Moderate Service.Hose, Synthetic Rubber, Wire Reinforced for Flexi-ble Hose Assemblies, General Specification For.Hose, Synthetic Rubber, Wire Reinforced, for Flex-ible Hose Assemblies (Double Wire Braid or Two-Spiral and One-Wire Braid High Pressure sizes -4Through -32).Hose, Syn
13、thetic Rubber, Wire Reinforced, for Flex-ible Hose Assemblies (Four Plies Spiral Wrappedor Two Spiral and One-Wire Braid High PressureSizes -6 Through -16).Hose, Synthetic Rubber, Wire Reinforced, for Flex-ible Hose Assemblies (Four Plies Spiral WrappedHigh Pressure Sizes -16 Through -32).Hose, Synt
14、hetic Rubber, Wire Reinforced, for Flex-ible Hose Assemblies (Double Wire Braid MediumPressure Sizes -40, -48 and -64).Hose, Synthetic Rubber, Wire Reinforced, forFlexible Hose Assemblies (Double Wire Braid,Perforated Cover, for High Pressure Air Sizes -4Through -32).Hose, Synthetic Rubber, Wire Rei
15、nforced, for Flex-ible Hose Assemblies (Double Wire Braid or Two-Spiral and One-Wire Braid High Pressure Sizes -4Through -32 for Phosphate Ester Base HydraulicFluids).Hose, Synthetic Rubber, Wire Reinforced, for Flex-ible Hose Assemblies (Four Heavy Spiral for HighPressure Phosphate Ester Service in
16、 Sizes -20,-24 and -32).Hose, Synthetic Rubber, Wire Reinforced, for Flex-ible Hose Assemblies (Four Plies, Spiral WrappedWire, for High Pressure Phosphate Ester BaseFluids Sizes -6 Through -16).Hose, Synthetic Rubber, Wire Reinforced, for Flex-ible Hose Assemblies (Four Plies, Heavy SpiralWrapped W
17、ire High Pressure Sizes -8 Through -32).Hose, Synthetic Rubber, Wire Reinforced, for Flex-ible Hose Assemblies (Single or Double Wire BraidMedium Pressure Sizes -4 Through -48).Hose, Synthetic Rubber,Wireible Hose Assemblies (Foursure, Sizes -80 and -96).3Reiforced for Flex-spiral Wire, low Pres-, .
18、-dProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-24787(SH)4.5 Examination.4.5.1 End fitting. Each sample fitting selected in accordance with 4.4.2.1shall be visually and dimensionally examined to determine conformance with therequirement parag
19、raphs listed in table III.TABLE III. Visual and dimensional examination of sample fitting.I Examination I RequirementDesign and construction 3.4Marking and instructions 3.6Threads 3.7Workmanship 3.84.6 Tests,4.6.1 Proof pressure. The proof pressure test of the hose assembliescontaining the sample fi
20、ttings shall be conducted in accordance with ASTM D 380except that the samples shall be in accordance with 4.3.1. The proof pressureshall be 200 percent of the maximum working pressure specified in the applicablespecification sheet, and shall be held for not less than 1 minute nor greater than5minut
21、es. The rate of pressure rise shall be at the following rates: a71(a) For sizes -32 and smaller, the rate of pressure increase shall benot less than 15,000 psi nor greater than 25,000 psi per minute.(b) For sizes greater than -32 the pressure increase shall not exceed1000 psi per minute.The pressure
22、 rise shall be at a uniform rate. The proof pressure shall be 200percent of the maximum working pressure specified in the applicable associateddetail specification and shall be held for not less than 1 minute nor greater than5 minutes. Fittings which pass this test are acceptable for use. Evidence o
23、fleakage past the fitting or separation of the fitting from the hose shallconstitute failure of this test.4.6.1.1 After the proof test age all samples per 3.5.1.1.4.6.2 Hydraulic fluid circulation. Sample hose assemblies shall be filledwith hydraulic fluid in accordance with MIL-L-2104, MIL-H-5606 o
24、r MIL-L-17331 andpressurized to between 75 and 100 psi. Unless otherwise specified in theindividual associated detail specification, the temperature shall be raised fromambient to 180 +/- 10”F and the fluid circulated through the hose assembly at aflow rate of not less than 3 gallons per minute. The
25、 ambient temperature shall bemaintained at 75 +/- 15”F. Every 24 hours the pressure shall be increased tomaximum working pressure listed in the applicable associated detail specificationand maintained for not less than 5 minutes. The flow shall be continued for noto10Provided by IHSNot for ResaleNo
26、reproduction or networking permitted without license from IHS-,-,-. .MIL-F-24787(SH)less than 200 hours. At the completion of this test, the hose assembly shall bepressurized to the maximum working pressure specified in the applicable associateddetail specification, with the pressure held for not le
27、ss than 5 minutes.Nonconformance to 3.5.2 shall constitute failure of this test.4.6.3 ImDulse. Hose assemblies fitted with end fittings being qualifiedshall be subjected to impulse testing to the peak pressure specified on theapplicable associated detail specification. Hose assemblies shall be subje
28、cted toan impulse rate of from 30 to 80 cycles per minute, with the hydraulic fluidtemperature of not less than 120”F nor greater than 130”F (unless otherwisespecified on the applicable associated detail specification) for a minimum of150,000 cycles. At the beginning of each pressure cycle, the peak
29、 pressurespecified on the applicable associated detail specification shall be attained.The applicable working pressure shall be attained before leveling off (see figures1, 2 or 3 of MIL-H-24135 or MIL-H-24136 as applicable).4.6.3.1 Retest and impulse averaing. In the event of a hose failure duringim
30、pulse testing, an additional hose assembly shall be tested and the results ofboth hose assemblies shall be averaged. The conditions for testing an additionalhose assembly are as follows:(a) If the averaging is for a hose qualification as well as a fittingqualification the conditions of MIL-H-24135 o
31、r MIL-H-24136 shallapply as applicable.(b) If the test is for fitting qualification only, the fitting shall beremoved from the failed hose and reset on a new length of hose andthe test continued until the required number of cycles have beenreached.NOTE: If the failure involved fitting separation fro
32、m the hose, averaging shallnot be permitted. The components of the failed hose assembly shall be analyzed todetermine the cause of the fitting separation from the hose. After correctiveaction has been taken, a new test, using new fittings and new hose shall beconducted. Nonconformance to 3.5.3 shall
33、 constitute failure of this test.4.6.4 Burst pressure. The burst pressure test of the hose assembly shall beconducted in accordance with ASTM D 380 except that the samples shall be inaccordance with 4.4,3. The pressure shall be raised at a uniform rate as follows:(a) For sizes -32 and smaller the ra
34、te of pressure rise shall be notless than 15,000 psi and not greater than 25,000 psi per minute.(b) For sizes greater than -32 the rate of pressure rise shall notexceed 1000 psi per minute.The burst pressure shall be 400 percent of the maximum working pressure specifiedin the applicable associated d
35、etail specification. Evidence of leakage, deforma-tion of the fitting or fitting separation at or below the specified test pressureshall constitute failure of this test. Fittings used for the burst test shall notbe acceptable for further use. Noncompliance with 3.5.4 shall constitute failureof this
36、test.11IProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-dMIL-F-24787(SH)4.7. Inspection of Dackaing. Sample packages and the inspection of thepackaging, preservation, (packing and marking) for shipment, stowage, and storageshall be in accordance with
37、 the requirements of section 5 and thedocumentsspecified therein.5. PACKAGING(The preparation for delivery requirements specified herein apply only fordirect Government acquisitions.)5.1 Packain requirements. The packaging (preservation, packing andmarking) requirements shall be in accordance with M
38、IL-H-775 for the level ofpreservation (A, C, or Commercial), the level of packing (A, B, C, or Commercial),and marking including other packaging acquisitioning options therein, as specified(see 6.2).6. NOTES(This section contains informationmay be helpful, but is not mandatory.)of a general or expla
39、natory nature that6.1 Intended use. Fittings are intended for use with hoses conforming toMIL-H-24135 and MIL-H-24136 in piping systems as flexible connections to resil-iently mounted (sound mounted) equipment but may be used for other applicationwhich do not exceed the pressure or temperature limit
40、s of the hose selected.6.2 Acquisition requirements.6.2.1.1 Fittins. For fittings, acquisition documents shall specify thefollowing:(a)(b)(c)(d)(e)(f)(g)Title, number and date of this specification and applicable speci-fication sheet.End fitting type.End fitting group (see applicable associated deta
41、il specification).End fitting size (pipe end and hose end).Issue of DODISS to be cited on the solicitation, and if required,the specific issue of individual documents referenced (see 2.1 and2.1.1).Inspection system required.Level of preservation, level of packing and other options required(see 5.1).
42、6.3 Qualification. With respect to products requiring qualification, awardswill be made only for products which are, at the time set for opening of bids,qualified for inclusion in Qualified Products List QPL 24787 whether or not suchproducts have actually been so listed by that .date. The attention
43、of thecontractors is called to these requirements, and manufacturers are urged toarrange to hose the products that they propose to offer to the Federal Governmenttest for qualification in order that they may be eligible to be awarded contractsor purchase orders for the products covered by this speci
44、fication. The activity12Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-F-24787(SH)a71 responsible for the Qualified Products List is the Naval Sea Systems Command SEA03Q42 (QPL), 2531 Jefferson Davis Hwy., Arlington, VA 22242-5160 and informat
45、ionpertaining to qualification of products may be obtained from that activity.Application for qualification tests shall be made in accordance with “ProvisionsGoverning Qualification SD-6 (see 6.3.1).6.3.1 Copies of “Provisions Governing Qualification SD-6” may be obtainedupon application to Standard
46、ization Document Order Desk, Building 4D, 700 RobbinsAvenue, Philadelphia, PA 19111-5094.6.4 Suersession data. This specification covers fittings formerly coveredby specifications MIL-H-24135 and MIL-H-24136. Table IV Drovides detailedsupersession data. .TABLE IV. SuDersession detail.OldSpecificatio
47、nMIL-H-24135/lMIL-H-24135/2MIL-H-24135/3FittingtypeABBLcCLDEELABBLcCLDASBSBLSCsCLSDSBOBLOcoCLODOUoNewSpecificationMiL-F-24787/2MIL-F-24787/7MIL-F-24787/7MIL-F-247873MIL-F-24787/3MIL-F-24787/5MIL-F-24787/lMIL-F-24787/lMIL-F-24787/2MIL-F-24787/7MIL-F-24787/7MIL-F-24787/3MIL-F-24787/3MIL-F-24787/5MIL-F
48、-24787/2MIL-F-24787/7MIL-F-24787/7MIL-F-24787/3MIL-F-24787/3MIL-F-24787/5MIL-F-24787/7MIL-F-24787/7MIL-F-24787/3MIL-F-24787/3MIL-F-24787/5MIL-F-24787/6FittingGroupIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIITypeABBLcCLDFFLABBLcCLDABBLcCLDBBLcCLDu13Provided by IHSNot for ResaleNo reproduc
49、tion or networking permitted without license from IHS-,-,-MIL-F-24787(SH)TABLE IV. Suuersession detail - Continued.New,. OldFittingSpecification FittingtypeSpecificationGroup TypeMIL-H-24135/4 AIAIIAIIIAIVBIBIIBIIIBIVcCADDAEFSPLITCIAMPFEMMALEMIL-F-24787/lMIL-F-24787/lMIL-F-24787/lMIL-F-24787/lMIL-F-24787/lMIL-F-24787/lMIL-F-24787/lMIL-F-24787/lMIL-F-24787/4MIL-F-24787/4MIL-F-24787/4MIL-F-24787/4MIL-F-24787/5MIL-F-24787/6M
