1、MIL-DTL-83298C 22 October 2009 SUPERSEDING MIL-DTL-83298B 29 September 2000 DETAIL SPECIFICATION HOSE, CONDUCTIVE POLYTETRAFLUOROETHYLENE TUBE, HIGH TEMPERATURE, HIGH PRESSURE (3000 PSI), HYDRAULIC AND PNEUMATIC This specification is approved for use by all Departments and Agencies of the Department
2、 of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for hose, conductive polytetrafluoroethylene tube, high-temperature, high pressure (3000 psi), hydraulic and pneumatic (see 6.1). 1.2 Part or Identifying Number (PIN) bulk hose or specific lengths. The hose PIN consists of t
3、he letter M, the specification number, a dash, hose size, a dash, length in feet, a dash, and a B or S for bulk hose. M 83298 -10 - 096 - S PIN example: M83298-10-096-S, describes a 5/8 inch ID hose, 92 continuous feet long. 1.2.1 Length. Specify length in feet using three numbers; use the number ze
4、ro as place holders as applicable. AMSC N/A FSC 4720 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 wan
5、t to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil. INCH-POUND Specification number Hose size (see 3.4.3) Length in feet (see 1.2.1) M prefix B or S for bulk lengths (see 1.2.2) Provided by IHSNot for ResaleNo reproduction or networking
6、 permitted without license from IHS-,-,-MIL-DTL-83298C 2 1.2.2 Bulk hose lengths. Bulk hose lengths are represented by the letter B or S. Bulk lengths are in increments of 20 feet or more (see 3.4.3.1.1). The S designator is used to define specific lengths in feet (see 3.4.3.1.2). Examples: When 30
7、feet total length is required the designator is: 030-B When 30 feet continuous length is required with a 1% tolerance the designator is: 030-S 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 i
8、nclude 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 specified requirements documents cited in sections 3
9、, 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. Unless otherwise specified, the issues of the
10、se documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-PRF-5606 - Hydraulic Fluid, Petroleum Base, Aircraft, Missile, and Ordnance MIL-PRF-680 - Degreasing Solvent MIL-PRF-7808 - Lubricating Oil, Aircraft, Turbine Engine, Synthetic Base MIL-PRF-83282 -
11、 Hydraulic Fluid, Fire Resistant Synthetic Hydrocarbon Base, Aircraft MIL-DTL-83296 - Fitting, Corrosion Resistant Steel, High Temperature, High Pressure, General Requirements for MIL-PRF-87257 - Hydraulic Fluid, Fire Resistant; Low Temperature, Synthetic Hydrocarbon Base, Aircraft and Missile MIL-D
12、TL-32330 - Hose Assembly, Conductive Polytetrafluoroethylene Tube, Smooth Bore, Flared and Flarless, Tube to Hose, with Swivel Nut DEPARTMENT OF DEFENSE STANDARD MIL-STD-130 - Identification Marking of US Military Property (Copies of these documents are available online at http:/assist.daps.dla.mil/
13、quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, 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
14、 are those cited in the solicitation or contract. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83298C 3 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D4895 - PTFE Resin Produced from Dispersion (Copies of these documents are avail
15、able online at http:/www.astm.org or from the ASTM International, P.O. Box C700, 100 Barr Harbor Drive, 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.nc
16、sli.org or from NCSL International 2995 Wilderness Place, Suite 107 Boulder, Colorado 80301-5404.) INTERNATIONAL 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:
17、/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-AS603 - Impulse Testing of Hydraulic Hose, Tubing, and Fitting Assemblies SAE-AS611 - Hose Assembly and Tubing, Poly
18、tetrafluoroethylene, Cleaning Methods for SAE-AS2078 - Test Methods, Hose Assemblies, Polytetrafluoroethylene (PTFE) SAE-AMS2700 - Passivation of Corrosion Resistant Steels (Copies of these documents are available online at http:/www.sae.org or from the SAE World Headquarters, 400 Commonwealth Drive
19、, 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 cited herein the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regu
20、lations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Qualification. The hose furnished under this specification shall be a product that is authorized by the qualifying activity for listing on the applicable qualified products list (QPL) before contract award (see 4.4 and 6.3).
21、The hose shall be qualified with approved fittings listed on QPL-83296 from two or more manufacturers. 3.2 Materials. Materials used shall be as identified herein or as approved by the qualifying activity. However, materials not specified herein or approved by the qualifying activity, shall be of a
22、quality that will enable the hose to meet the requirements specified herein. 3.2.1 Hose construction. The hose shall consist of a polytetrafluoroethylene tube with corrosion-resistant steel reinforcement. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
23、-,-MIL-DTL-83298C 4 3.3 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes econ
24、omically advantageous life cycle costs. 3.4 Design and construction. The hose shall be so designed and constructed that, when assembled with approved end fittings in accordance with MIL-DTL-83296; the resulting hose assemblies shall meet the requirements of this specification and MIL-DTL-32330. 3.4.
25、1 Tube. The tube shall be a seamless extrusion of virgin polytetrafluoroethylene resin. Base resin shall conform to ASTM D4895, except for the specific gravity (SG) requirements. Additives may be included in the compound from which the tube is extruded. 3.4.1.1 Reinforcement. The reinforcement shall
26、 be braided corrosion-resistant stainless steel wire, uniform in quality and size, and of sufficient strength to insure that the hose shall meet the requirements specified herein. There shall be no broken or spliced reinforcing wires nor shall any wires be omitted in any length of hose. Corrosion re
27、sistant steel shall be passivated in accordance with SAE-AMS2700, method 2 (see 6.7.1). 3.4.1.2 Interlayers. Interlayers, if used, shall be resistant to or suitably protected from all fluids with which the hose may come in contact. They shall be capable of withstanding temperature and pressures spec
28、ified in table I. Interlayers shall not extrude through the outer braid. TABLE I. Performance requirements of hose. 1/ 2/ Size dash no. Hose dia. fraction Maximum operating pressure Proof pressure Min. burst pressure at room temp Min. burst pressure at high temp psi MPa psi MPa psi MPa psi MPa -4 1/
29、4 3,000 21 6,000 41 16,000 110 12,000 83 -6 3/8 3,000 21 6,000 41 14,000 97 10,500 72 -8 1/2 3,000 21 6,000 41 14,000 97 10,500 72 -10 5/8 3,000 21 6,000 41 12,000 83 9,000 62 TABLE I. Performance requirements of hose - Continued. 1/ 2/ Size dash no. Min. bend radius (inside of bend) inches (mm) Vol
30、ume expansion (cc/in.) Pneumatic temperature range Hydraulic temperature range F (C) -4 3.00 (76.2) .065 -65F to+160 F -54C to 71C -65F to +400F -54C to 204C -6 5.00 (127) .085 -8 5.75 (146) .135 -10 6.50 (165) .220 1/ Dimensions are in inches. 2/ Metric equivalents are given for information only. 3
31、.4.2 Hose end fittings. Hose end fittings required to test hose assemblies to the requirements of this specification shall conform to MIL-DTL-83296 and the applicable detail specification sheet. 3.4.3 Dimensions. The hose dimensions shall be as specified in table II. Provided by IHSNot for ResaleNo
32、reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83298C 5 TABLE II. Hose dimensions. 1/ 2/ Size dash no. Min. hose ID inches (mm) Tubing wall thickness inches (mm) .005 (0.13) Max. over braid OD inches (mm) -4 .217 (5.51) .050 (1.27) .470 (11.94) -6 .310 (7.87) .050 (1.27) .
33、575 (14.61) -8 .425 (10.80) .050 (1.27) .742 (18.85) -10 .552 (14.02) .050 (1.27) .882 (22.40) 1/ Dimensions are in inches. 2/ Metric equivalents are given for information only. 3.4.3.1 Length. Lengths of hose may be ordered in bulk lengths (see 3.4.3.1.1) or specific lengths (see 3.4.3.1.2). 3.4.3.
34、1.1 B designator for bulk hose. Bulk hose may be furnished in various lengths. If the hose is supplied in various lengths they shall be specified in table III. TABLE III. Bulk hose lengths. Size dash no. Lengths 3 ft to 14 ft (0.9 to 4.3 m) (max. %) Lengths above 14 ft (4.3 m) (min. %) -4 35 65 -6 3
35、5 65 -8 35 65 -10 45 55 3.4.3.1.2 S designator for specific bulk hose lengths. When the order is for a specific length in feet, a tolerance of 1% of the required length shall be used. 3.5 Examination of product. The hose shall conform to the materials (see 3.4), cleaning (see 3.5.1), dimensions (3.4
36、.3, hose identification (see 3.7), and workmanship (see 3.8), when examined as specified in 4.8.1. 3.5.1 Cleaning. All hose shall be cleaned in accordance with SAE-AS611, class 0. The interior surface of the hose shall be free from oil, grease, dirt, moisture, cleaning solvents and foreign materials
37、 when examined in accordance with 4.8.1.2 and 4.8.1.3. After cleaning ends of each hose length shall be capped or plugged to prevent entrance of moisture and foreign matter. The caps or plugs shall be securely attached and shall withstand normal strains, jarring and vibrations encountered during shi
38、pping, storage, and handling. 3.6 Performance. The hose shall be capable of meeting the following performance requirements within the physical requirements specified in table I. 3.6.1 Tests on PTFE inner tube. 3.6.1.1 Density and relative density. When tested in accordance with 4.8.2.1, the PTFE inn
39、er tube specific gravity shall not exceed 2.155 apparent and 2.210 relative. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83298C 6 3.6.1.2 Tensile strength. The longitudinal tensile strength for all sizes of tube shall be 2200 psi (15.2 Mp
40、a) minimum, and the transverse tensile strength (-10 size only) shall be 1800 psi (12.4 Mpa) minimum at 73F 4 F (22.8C 2.2C). The tensile strength test shall be conducted in accordance with. 4.8.2.2. 3.6.1.3 Elongation. The longitudinal and transverse elongation at 73F 4F (22.8C 2.2C) shall be a min
41、imum of 200% when tested in accordance with 4.8.2.3. 3.6.1.4 Electrical conductivity of tube. Tube sizes -4 through -8 when tested in accordance with 4.8.2.4 shall be capable of conducting a current equal to or greater than 6 microamperes. Tube size -10 shall be equal to or greater than 12 microampe
42、res with a test potential of 1,000 volts dc, when tested in accordance with 4.8.2.4. 3.6.1.5 Tube roll. When tested In accordance with 4.8.2.5, the PTFE inner tube shall meet the gap dimensions for rolling requirements in accordance with SAE-AS2078. The PTFE inner tube shall not leak, split, burst,
43、or show any evidence of failure. 3.6.1.6 Tube proof pressure. The tube without any reinforcing wires shall not leak, burst, or show any evidence of permanent deformation when tested in accordance with 4.8.2.6. 3.6.2 Hose and hose assembly. The hose, when assembled with end fittings in accordance wit
44、h MIL-DTL-83296, shall meet the following performance requirements. 3.6.2.1 Proof pressure. There shall be no leakage through the wall of the hose or around the fittings when the hose assembly is subjected to testing in accordance with 4.8.3.1. 3.6.2.2 Leakage. The hose assembly shall not leak or ru
45、pture when subjected the minimum room temperature burst pressure specified in table I when tested in accordance with 4.8.3.2. 3.6.2.3 Burst testing. 3.6.2.3.1 Room temperature burst pressure. The hose assembly shall not leak or rupture at any pressure below the minimum room temperature burst pressur
46、e specified in table I, when tested in accordance with 4.8.3.3.1. 3.6.2.3.2 High temperature burst pressure. When tested in accordance with 4.8.4.3.2, the hose assembly shall not leak, rupture, or blow off the hose at any pressure below the minimum high temperature burst pressure specified in table
47、II. 3.6.2.4 Elongation and contraction. The hose assembly shall not change in length by more than .20 inch (5.08 mm) in 10 inches (254 mm) of length when tested in accordance with 4.8.3.4. 3.6.2.5 Stress degradation. The average air effusion shall not exceed 2.0 cc/in/min when tested in accordance w
48、ith 4.8.3.5. 3.6.2.6 Impulse. The hose assembly shall not burst, leak, or show evidence of malfunctioning when subjected to a minimum of 250,000 impulse cycles when tested in accordance with 4.8.3.6. 3.6.2.7 Thermal shock. The hose assembly shall not leak or rupture at any pressure below the minimum
49、 high temperature burst pressure specified in table I, when tested in accordance with 4.8.3.7. 3.6.2.8 Flexibility. The hose assembly shall not leak or show any evidence of malfunction when tested in accordance with 4.8.3.8. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-83298C 7 3.6.2.9 Volumetric expansion. The volumetric ex
