1、MIL-DTL-83796B 11 August 2008 SUPERSEDING MIL-DTL-83796A 18 September 2000 DETAIL SPECIFICATION HOSE ASSEMBLY, RUBBER, LIGHTWEIGHT, MEDIUM PRESSURE, GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This
2、 specification covers the requirements for hose assembly, rubber, lightweight, medium pressure. For use in fuel and lubricating oil systems operating at 200 to 1000 psi and at a temperature range -65F to 250F. 1.2 Part or Identifying Number (PIN). The PIN consists of the letter M, the basic specific
3、ation number, a letter for fitting size, a two digit number for hose assembly length, a number for length in eighths of an inch, letter for style, a two digit number for angle between elbows, and a letter for material/finish. M83796 /1 H 0308 2 F 06 TComments, suggestions, or questions on this docum
4、ent 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 using the ASSIST Online database at http:/assist.
5、daps.dla.mil. Material/finish Angle between elbows to be specified in 5 increments, 30 / 5 = 06 Specification number Specification sheet number Size code (see table I) Length in inches (see 1.2.1) Length in eighths of an inch (see 1.2.1) Style (see 1.2.2) INCH-POUNDAMSC N/A FSC 4720 Provided by IHSN
6、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83796B 2 TABLE I. Size code. 1/ 2/ Dash number -03 -04 -05 -06 -08 -10 -12 -16 Size code B E F G H J K M Inches fraction 3/16 1/4 5/16 3/8 1/2 5/8 3/4 1 Inches decimal .188 .250 .313 .375 .500 .625 .750 1.000 H
7、ose OD reference mm 4.78 6.35 7.95 9.53 12.70 15.88 19.05 25.40 Dash number -20 -24 -32 Size code N P R Inches fraction 1 1/4 1 1/2 2 Inches decimal 1.250 1.500 2.000 Hose OD reference mm 31.75 38.10 50.80 1/ Dimensions are in inches. 2/ Metric equivalents are given for information only. 1.2.1 Lengt
8、hs of hose. Lengths of hose are represented by inches (00 through 99) and fractions in 1/8 inch increments (0 thru 7). 1.2.2 Styles. Styles are shown in the individual specification sheets. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4 or 5
9、of this specification. This section does not include documents cited in other sections of this specification or recommended for 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 specif
10、ied requirements documents cited in sections 3, 4 or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein.
11、Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-PRF-5606 - Hydraulic Fluid, Petroleum Base, Aircraft, Missile and Ordinance MIL-PRF-7808 - Lubricating Oil, Aircraft Turbine Engine, Synthetic Base MIL-
12、PRF-87257 - Hydraulic Fluid, Fire Resistant; Low Temperature, Synthetic Hydrocarbon Base, Aircraft and Missile MIL-PRF-83282 - Hydraulic Fluid, Fire Resistant, Synthetic Hydrocarbon Base Aircraft, Metric, NATO Code Number H-537 MIL-DTL-83797 - Hose, Rubber, Lightweight, Medium Pressure, General Spec
13、ification for MIL-DTL-83798 - Fitting, Rubber Hose, Lightweight, Medium Pressure, General Specification for Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83796B 3 (See supplement 1 for list of specification sheets.) DEPARTMENT OF DEFENSE ST
14、ANDARDS MIL-STD-130 - Identification Marking of U.S. Military Property MS20756 - Flange, Swivel, Retaining MS33786 - Fitting Installation, Flared Tube and Hose, Swivel (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order
15、 Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) DEFENSE SUPPLY CENTER COLUMBUS (DSCC) 08001 - Hose Assembly, Internal Support Coil, For Vacuum and Suction Hoses (Copies of these documents are available online at http:/www.dscc.dla.mil/programs/milspec/ or from the Defense Suppl
16、y Center Columbus, ATTN: VAI, P.O. Box 3990, Columbus, Ohio 43218-3990.) 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. AE
17、ROSPACE INDUSTRIES ASSOCIATION (AIA) NAS847 - Caps and Plugs, Protective, Dust and Moisture Seal (Copies of these documents are available online at http:/www.aia- or from the Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3901.) ASTM INTERNATIONAL ASTM A249/
18、A249M - Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes ASTM D380 - Standard Test Methods for Rubber Hose (Copies of these documents are available online at http:/www.astm.org or from the ASTM International, P.O. Box C700, 100 Barr Harbor D
19、rive, West Conshohocken, PA 19428-2959.) 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)
20、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83796B 4 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) ISO 17025 - General requirements for the competence of testing and calibration laboratories (Copies of these documents are available
21、 online at http:/www.iso.ch or from the International Organization for Standardization American National Standards Institute, 11 West 42ndStreet, 13thFloor, New York, NY 10036.) SAE INTERNATIONAL SAE-AS1055 - Fire Testing of Flexible Hose, Tube Assemblies, Coils, Fittings, and Similar System Compone
22、nts SAE-AS1072 - Sleeve, Hose Assembly, Fire Protection SAE-AS1933 - Age Controls for Hose Containing Age-Sensitive Elastomeric Material SAE-AS4395 - Fitting End-Flared Tube Connection, Design Standard SAE-AS33514 - Fitting End, Standard Dimensions for, Flareless Tube Connection and Gasket Seal (Cop
23、ies of these documents are available online at http:/www.sae.org or from the SAE World Headquarters, 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 this document and the references cite
24、d herein (except for related specification sheets) the text 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
25、 be as specified herein and in accordance with the applicable specification sheet. In the event of any conflict between the requirements of this specification and the specification sheet, the latter shall govern. 3.2 First article. When specified (see 6.2), samples shall be subjected to first articl
26、e inspection in accordance with 4.4. 3.3 Materials. Hose assemblies shall comprise of hoses in accordance with MIL-DTL-83797 and fittings in accordance with MIL-DTL-83798, see 4.2.1. 3.3.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferabl
27、e materials 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 costs. 3.4 Design and construction. The hose assembly shall be formed from a hose (see 3.4.1) coupled
28、with end fittings (see 3.4.2) to meet the requirements specified herein and in the applicable specification sheet. 3.4.1 Hose. The hose shall be qualified in accordance with MIL-DTL-83797. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83796
29、B 5 3.4.1.1 Firesleeve. When required for fire resistance, a sleeve in accordance with SAE-AS1072 shall be furnished on the outside of the hose. Firesleeve ends shall be “end dipped” to prevent fuel or oil from wicking into the fibers. The cover need not be bonded to the outer-most reinforcement ply
30、, but shall not be free to slip or turn along the length of hose. The cover shall permit gas that may effuse from the inner tube to escape to the atmosphere. The firesleeve shall cover all the hose and more than 2/3 of the fitting. None of the rubber hose shall be exposed. 3.4.1.2 Firesleeve clamp.
31、Firesleeve clamps shall be stainless steel in accordance with ASTM A249/A249M alloy UNS S30400 or UNS S31600. 3.4.1.3 Internal support coil. When required for suction or vacuum an internal support coil in accordance with DSCC drawing 08001 shall be used. 3.4.1.4 Internal coil length. The coils shoul
32、d be cut to overall assembly length minus the nipple intrusion. 3.4.2 Fittings. The fittings shall be qualified to MIL-DTL-83798. The flared fitting shall mate with SAE-AS4395; the flareless fittings shall mate with SAE-AS33514; and the flange fitting shall mate with the mounting pad as specified on
33、 MS33786. 3.4.3 Hose assembly tolerances. 3.4.3.1 Length tolerances. Tolerances on hose assembly lengths shall be as follows: 1/8 inch for lengths under 18 inches 1/4 inch for lengths from 18 inches to 36 inches 1/2 inch for lengths over 36 inches to 50 inches 1 percent for lengths over 50 inches 3.
34、4.3.2 Angular alignment tolerance. The angular alignment tolerance for the hose assembly elbow fitting shall be 5 on hose lengths up to 36 inches (91.4 cm) and 10 on hose lengths over 36 inches (91.4 cm). 3.5 Performance. 3.5.1 Examination of product. The hose assemblies shall conform to the require
35、ments of this specification and the applicable specification sheet when visually examined as specified in 4.7.1. 3.5.1.1 Cleanliness. The end fittings of the hose assemblies shall be capped or plugged and shall be free of all foreign materials, both internally and externally, which could adversely a
36、ffect performance and reliability when examined as specified in 4.7.1.1. 3.5.1.2 Dimensions. The hose assembly shall be within the tolerances specified herein and on the applicable drawing when examined as specified in 4.7.1.2. 3.5.2 Inner tube bulge, straight fitting. The gage shall fall freely thr
37、ough the bulge under its own weight without lubrication, when tested as specified in 4.7.2. 3.5.3 Proof pressure. The hose assemblies shall not show any evidence of leakage, damage, or permanent deformation of the hose or end fittings, when tested as specified in 4.7.3. 3.5.4 Leakage. The hose assem
38、blies shall not show any evidence of leakage through the hose or around the fittings, when tested as specified in 4.7.4. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83796B 6 3.5.5 Burst pressure. The hose shall not burst; the end fittings
39、 shall not become loose or separate from the hose and there shall not be any leakage from the hose or end fitting, below the specified burst pressure, when tested as specified in 4.7.5. 3.5.6 Fire resistant. When specified (see 6.2), the hose assembly shall not rupture or leak when tested as specifi
40、ed in 4.7.6. 3.6 Identification of product. The hose assembly shall be identified in accordance with MIL-STD-130. In addition the hose assembly shall have a permanently snug-fitting aluminum or stainless steel band around the hose near the end fitting. The band shall be designed to remain tight on t
41、he hose to prevent relative movement and resultant chafing. Where the hose assembly exceeds 4 feet in length, a band shall be attached near each end fitting of the assembly. The metal band shall be marked in raised, etched, or stamped lettering with the following information appropriately identified
42、: a. Specification number and hose size. b. Date of assembly in month and year. c. The rated working pressure in psi. d. Manufacturers name, trademark, or Commercial and Government Entity (CAGE) number. e. Manufacturers PIN. f. Hose manufacturers CAGE number if different from hose assembly manufactu
43、rer. g. Hose cure date, quarter and year. h. Fire resistant (when applicable). 3.7 Age control. Hose assemblies shall not exceed the age limits specified in SAE-AS1933. Chlorinated Polyethylene (CPE) base hose may extend the SAE-AS1933 limits and is acceptable to 12 years (48 quarters). 3.8 Cleanlin
44、ess. 3.8.1 Clean. All hose lengths shall be free of oil, grease, dirt, moisture, cleaning solvents and foreign materials both internally and externally. 3.8.2 Closures. The end fittings of the hose assembly ends shall be sealed with caps or plugs conforming to NAS847 to prevent the entrance of forei
45、gn contaminants. The caps or plugs shall be securely attached and shall withstand normal strains, jarring and vibrations encountered during shipping, storage and handling. Hose lengths with uncovered ends shall be rejected and considered as failure. 3.9 Workmanship. The hose assembly, including all
46、parts, shall be constructed and finished in a thoroughly workmanlike manner. All surfaces shall be free from burrs and sealing surfaces shall be smooth. 4. VERIFICATION 4.1 Classification of inspection. The inspection requirements specified herein are classified as follows: a. First article inspecti
47、on (see 4.4). b. Conformance inspection (see 4.5). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83796B 7 4.2 Test equipment and inspection facilities. Test and measuring equipment and inspection facilities of sufficient accuracy, quality a
48、nd quantity to permit performance of the required inspection shall be used. The establishment and the maintenance of a calibration system to control the accuracy of all test and measuring equipment shall be in accordance with ISO 17025 and NCSL Z540.3, as applicable. 4.2.1 QPL manufacturers. When th
49、e hose assembly manufacturer is also listed on the QPL for the hose (MIL-DTL-83797) and fittings (MIL-DTL-83798) used for the hose assembly, first article inspection shall be waived, except for fire resistance if required, see 4.7.6. 4.3 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance with the test conditions specified in 4.6. 4.4 Fi
