1、 MIL-DTL-83296B 14 October 2009 SUPERSEDING MIL-DTL-83296A 29 September 2000 DETAIL SPECIFICATION FITTINGS, CORROSION RESISTANT STEEL, HIGH TEMPERATURE, HIGH PRESSURE (3000 PSI), HYDRAULIC AND PNEUMATIC, GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies
2、 of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for fittings, corrosion resistant steel, high temperature, high pressure (3000 psi), hydraulic and pneumatic. These fittings are for use with MIL-DTL-83798 hose, conductive polytetrafluoroethylene (PTFE) sm
3、ooth bore tube (see 6.1). 1.2 Part or Identifying Number (PIN). The PIN consists of the MS number, a dash number for fitting size, and material code as specified in the MS sheet. MS27616 -4 C Material Dash size Specification sheet number PIN example: MS27616-4C indicates an adapter assembly, tube to
4、 hose with swivel nut, .250 inch, corrosion resistant steel. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for
5、additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. AMSC N/A FSC 4730
6、Comments, suggestions, or questions on this document should be addressed to: Defense Supply Center, Columbus, Attn: DSCC-VAI, P.O. Box 3990, Columbus, OH 43218-3990, or emailed to FluidFlowdla.mil. Since contact information can change, you may want to verify the currency of this address information
7、using the ASSIST Online database at http:/assist.daps.dla.mil. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83296B 2 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standar
8、ds, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-PRF-680 - Degreasing Solvent MIL-PRF-5606 - Hydraulic Fluid, Petroleum Ba
9、se, Aircraft, Missile and Ordnance MIL-PRF-7808 - Lubricating Oil, Aircraft Turbine Engine, Synthetic Base Hydraulic Fluid, Non-Petroleum Base, Aircraft MIL-PRF-83282 - Hydraulic Fluid, Fire Resistant, Synthetic Hydrocarbon Base, Metric, NATO Code Number H-537 MIL-DTL-83298 - Hose, Polytetrafluoroet
10、hylene, High Temperature, High Pressure MIL-PRF-87257 - Hydraulic Fluid, Fire Resistant; Low Temperature, Synthetic Hydrocarbon Base, Aircraft and Missile MIL-DTL-32330 - Hose Assembly, Conductive Polytetrafluoroethylene Tube, Smooth Bore, Flared and Flareless, Tube to Hose, with Swivel Nut (See sup
11、plement 1 for list of specification sheets.) DEPARTMENT OF DEFENSE STANDARD MIL-STD-130 - Identification Marking of U. S. Military Property (Copies of these documents are available online at http:/assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, P
12、hiladelphia, PA 19111-5094.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. ASME INTERNATIONAL ASME B46.1 - Surface Textur
13、e (Surface Roughness, Waviness and Lay) (Copies of these documents are available online at http:/www.asme.org or from the ASME International, Three Park Avenue, New York, NY 10016-5990.) ASTM INTERNATIONAL ASTM E1742 - Standard Practice for Radiographic Examination (Copies of these documents are ava
14、ilable online at http:/www.astm.org or from the ASTM International, P.O. Box C700, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) AMERICAN WELDING SOCIETY INC. (AWS) AWS C3.4 - Specification for Torch Brazing AWS C3.6 - Specification for Furnace Brazing AWS D17.1 - Specification for Fusio
15、n Welding for Aerospace Applications-Incorporating Errata (Copies of these documents are available online at http:/www.aws.org/ or from the American Welding Society Inc., 550 N.W. LeJeune Road, Miami, FL 33126-5649.) Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
16、e from IHS-,-,-MIL-DTL-83296B 3 NCSL INTERNATIONAL NCSL Z540.3 - Requirements for the Calibration of Measuring and Test Equipment (Copies of these documents are available online at http:/www.ncsli.org or from NCSL International 2995 Wilderness Place, Suite 107 Boulder, Colorado 80301-5404) INTERNATI
17、ONAL ORGANIZATION FOR STANDARDIZATION (ISO) ISO 17025 - General requirements for the competence of testing and calibration laboratories (Copies of these documents are available online at http:/www.iso.ch or from the International Organization for Standardization American National Standards Institute
18、, 11 West 42ndStreet, 13thFloor, New York, NY 10036.) SAE INTERNATIONAL SAE-AMS2700 - Passivation of Corrosion Resistant Steels SAE-AS603 - Impulse Testing of Hydraulic Hose, Tubing and Fitting Assemblies SAE-AS2078 - Test Methods, Hose Assemblies, Polytetrafluoroethylene (PTFE) SAE-AS4395 - Fitting
19、 End-Flared Tube Connection, Design Standard SAE-AS8879 - Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter SAE-AS33514 - Fitting End, Standard Dimensions for, Flareless Tube Connection and Gasket Seal (Copies of these documents are available from http:/www.sae.o
20、rg/ or from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001.) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein (except for related specification sheets), the te
21、xt of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Specification sheets. The individual item requirements shall be as specified herein and in accordance with the applic
22、able specification sheet. In the event of any conflict between the requirements of this specification and the specification sheet, the latter shall govern. 3.2 Qualification. Fittings furnished under this specification shall be products that are authorized by the qualifying activity for listing on t
23、he applicable qualified products list before contract award (see 4.4 and 6.3). 3.3 Materials. Materials shall be limited to those specified on the applicable specification sheets. 3.3.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable m
24、aterials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle cost. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
25、MIL-DTL-83296B 4 3.4 Design and construction. The fittings shall be designed to meet the requirements specified herein and in the applicable specification sheet. Special features shall not be used on the portion of the fitting that attaches to the hose. The fittings shall be suitable for use with ho
26、se in accordance with MIL-DTL-83298 to make hose assemblies in accordance with MIL-DTL-32330. 3.4.1 Fitting end mating. The fittings shall mate with fitting ends designed in accordance with SAE-AS33514 or SAE-AS4395 as applicable. 3.4.2 Dimensions. Dimensions of the fittings shall be as specified on
27、 the applicable specification sheets. 3.4.3 Surface roughness. Surface roughness shall be in accordance with ASME B46.1 as specified in the applicable specification sheet. 3.5 Performance. 3.5.1 Lubricant wear. The fittings shall be assembled four times and disassembled three times, not exceeding th
28、e torque listed in table I, when tested in accordance with 4.8.2. The final torque readings shall not exceed the values specified in table I. TABLE I. Torque. 1/ Size dash no. Socket torque lb-ft (Nm) -4 45 (61.9) -6 65 (88.1) -8 90 (122.0) -10 120 (162.7) 1/ Metric equivalents are given for informa
29、tion only. 3.5.2 Proof pressure. The fittings shall withstand the proof pressure specified in table II without malfunction or leakage, when tested in accordance with 4.8.3. 3.5.3 Leakage. The fittings shall not leak, when tested in accordance with 4.8.4. 3.5.4 Room temperature burst. The fittings sh
30、all not leak, rupture, or blow off the hose at any pressure below the minimum room temperature burst pressure specified in table II, when tested in accordance with 4.8.5. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83296B 5 TABLE II. Perf
31、ormance requirements of high pressure, high temperature fittings. 1/ 2/ Fitting dash size Fitting ID Max. operating pressure psi (MPa) Proof pressure psi (MPa) Min. burst pressure at room temp psi (MPa) Min. burst pressure at high temp psi (MPa) Minimum bend radius (inside of bend) inch (mm) -4 .025
32、 3000 (21) 6000 (41) 16,000 (110) 12,000 (83) 3.00 (76.2) -6 .375 3000 (21) 6000 (41) 14,000 (97) 10,500 (72) 5.00 (127.0) -8 .500 3000 (21) 6000 (41) 14,000 97) 10,500 (72) 5.75 (146.1) -10 .625 3000 (21) 6000 (41) 12,000 (83) 9,000 (62) 6.50 (165.1) Fitting dash size Temperature range -4 Hydraulic
33、 -65F to +400F (-53.9C to 204.4C) Pneumatic -65F to +160F (-53.9C to 204.4C) -6 -8 -10 1/ Dimensions are in inches. 2/ Metric equivalents are given for information only. 3.5.5 Stress degradation. The average air leakage at the fittings shall not exceed 2.0 cc/in/min, when tested in accordance with 4
34、.8.6. 3.5.6 Pneumatic effusion. The effusion at the fittings shall not exceed 8.0cc/ft/30 min., when tested in accordance with 4.8.7. 3.5.7 Pneumatic surge. The fittings shall not leak, when tested in accordance with 4.8.8. 3.5.8 Impulse. The fittings shall not loosen, leak, or blow off the hose whe
35、n subjected to a minimum of 250,000 impulse cycles, when tested in accordance with 4.8.9. 3.5.9 Over-tightening torque. The fittings shall withstand over-tightening torque 15 times, when tested in accordance with 4.8.10. 3.5.10 High temperature burst pressure. The fittings shall not leak, rupture, o
36、r blow off the hose at any pressure below the minimum high temperature burst pressure specified in table II, when tested in accordance with 4.8.11. 3.6 Interchangeability. Parts having the same MS number shall be functionally and dimensionally interchangeable. All parts manufactured to the same mili
37、tary part number shall be functionally interchangeable. 3.7 Screw threads. Threads shall be in accordance with SAE-AS8879. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83296B 6 3.8 Finish. Corrosion resisting steel parts shall be passivate
38、d in accordance with SAE-AMS2700, method 1. 3.9 Brazing or welding. Fittings requiring welding operations shall be welded in accordance with AWS D17.1, or brazed in accordance with AWS C3.4 or AWS C3.6. Welding of socket is not permitted. Inspection shall be in accordance with ASTM E1742, except tha
39、t the requirements concerning detailed data and retention of radiographs shall not apply to the brazed parts. 3.10 Identification of product. The fittings shall be permanently and legibly marked in accordance with MIL-STD-130 with the following information: PIN (see 1.2) and manufacturers CAGE code.
40、 3.11 Workmanship. Fittings shall be free from cracks, laps, seams, burrs, longitudinal and spiral tool marks, or any other defects which may detrimentally affect their suitability for the service use intended. 4. VERIFICATION 4.1 Test equipment and inspection facilities. Test and measuring equipmen
41、t and inspection facilities of sufficient accuracy, quality, and quantity to permit performance of the required inspection shall be established and maintained or identified by the contractor. The establishment and maintenance of a calibration system to control the accuracy of the measuring and test
42、equipment shall be in accordance with ISO 17025 and NCSL Z540.3 as applicable. 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: a. Qualification inspection (see 4.4). b. Conformance inspection (see 4.5). 4.3 Inspection conditions. Unless other
43、wise specified, all testing shall be conducted at atmospheric pressure within the range of 28 to 31 inches of mercury (71.1 to 78.4 centimeters of mercury), a temperature between 60F and 100F (15.6C to 37.8C), and a relative humidity of not more than 90%. Tolerances of the test conditions shall be a
44、s follows: a. Temperature: +10F, -5F (+5.55C, -2.8C) b. Pressure (gauge): 5% 4.3.1 Stabilization of test temperatures. Unless otherwise specified, the test temperature in the chamber shall be stabilized before conducting the test (see 6.5.1). 4.3.2 Test fluids. Unless otherwise specified, the test f
45、luid shall be hydraulic oil in accordance with MIL-PRF-5606, MIL-PRF-83282, or MIL-PRF-87257, or water (proof test, burst test, and leakage test only). When a high temperature test fluid is specified, the test fluid shall be lubricating oil in accordance with MIL-PRF-7808. 4.3.3 Oil aging. In all of
46、 the tests using oil-aged samples, the hose assemblies shall be filled with a high temperature test fluid and soaked in an air oven at a temperature of 400F (204.4C) for 7 days. All air shall be removed from the bore of the assembly during the test. 4.3.4 Air aging. In all of the tests using air-age
47、d samples, the hose assemblies shall be kept in air at a temperature of 400F (204.4C) for 7 days. 4.4 Qualification inspection (see 6.3). Qualification inspection shall be performed at a laboratory acceptable to the qualifying activity on sample units produced with equipment and procedures used in p
48、roduction. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83296B 7 4.4.1 Samples for qualification inspection. Samples for qualification inspection shall be representative of the products proposed to be furnished to this specification. Test
49、samples, consisting of 16 assemblies (32 fittings), and hose in accordance with MIL-DTL-83298, for each dash size and length specified in table III, shall be examined and tested by the qualifying activity in accordance with this specification. Fittings shall be assembled and tested with qualified hose supplied by qualified manufacturers Test results shall be submitted to the acquiring ac
