1、AMSC N/A FSC 1650 AN6279 Rev 7 21 April 2011 SUPERSEDING AN6279 Rev 6 01 July 1987 DETAIL SPECIFICATION SHEET VALVE-HYDRAULIC PRESSURE RELIEF TWO PORT This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product descr
2、ibed herein shall consist of this specification sheet and MIL-DTL-5523. Part or Identifying Number (PIN) H Tubing OD A Max reference B C D Max E .005 F G Max K .005 Rated flow GPM min AN6279-4XX .25 4.4375 2.125 1.3125 1.500 1.312 1.3125 1.625 1.750 1.2 AN6279-6XX .375 4.9375 2.375 1.75 1.625 1.5 1.
3、500 1.8125 2.000 3.5 AN6279-8XX .5 5.875 2.750 1.875 2.000 1.75 1.750 2.125 2.375 6.0 AN6279-12XX .75 7.250 3.625 2.625 2.250 2.125 2.125 2.875 3.250 16.0 FIGURE 1. Valve - hydraulic pressure relief two port. INCH-POUND Inactive for new design after 06 January 1961. Provided by IHSNot for ResaleNo r
4、eproduction or networking permitted without license from IHS-,-,-AN6279 Rev 7 2 Metric equivalents millimeters liters per minute (LPM) PIN H Tubing OD A Max reference B C D Max E .005 F G Max K .005 Rated flow LPM min AN6279-4XX 6.35 112.71 53.98 33.34 38.10 33.33 33.34 41.28 44.45 4.54 AN6279-6XX 9
5、.53 125.41 60.33 44.45 41.28 38.10 38.10 46.05 50.80 13.2 AN6279-8XX 12.70 149.23 69.85 47.63 50.80 44.45 44.45 53.98 60.33 22.7 AN6279-12XX 19.05 184.15 92.08 66.68 57.15 53.98 53.98 73.03 82.56 60.6 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for information only. 3. Unless
6、 otherwise specified tolerances for three place decimals .010 inch (0.25 mm). FIGURE 1. Valve - hydraulic pressure relief two port - Continued. REQUIREMENTS Dimensions, see figure 1. PIN, see table I. TABLE I. PIN. PIN Pressure range PSI 100 - 1000 1000 2300 2300 3850 AN6279-4YZ AN6279-4AB AN6279-4C
7、D AN6279-6YZ AN6279-6AB AN6279-6CD AN6279-8YZ AN6279-8AB AN6279-8CD AN6279-12YZ AN6279-12AB AN6279-12CD Canceled PINs. PINs AN6279 -4Y, -6Y, -8Y, -12Y, -4Z, -6Z, -8Z and -12Z are canceled after 27 August 1953. There are no superseding AN PINs. Valve cracking pressure. For contractors procurement onl
8、y, the valve cracking pressure (as a code number in pounds per square inch) may be impressed on a lead seal or equivalent. And attached to the lockwire of the adjusting nut, in order to indicate a specified cracking pressure. The relief valve nameplate and applicable government records such as parts
9、 catalogs, spares, documents, etc. shall not contain this coded number indicating pressure setting. The services shall not procure or stock valves adjusted to any specific cracking pressure. Pressure setting notation. Notations on aircraft contractors assembly and installation drawings shall contain
10、 the proper AN number, as shown in table I, followed by the pressure setting parenthetically listed. PIN example for government use: AN6279-6CD indicates a valve for pressure range 2300 to 3850 PSI, 3/8 inch tubing OD. PIN example for contractors drawings: AN6279-6CD(3400) indicates a valve for pres
11、sure range 2300 to 3850 PSI, 3/8 inch tubing OD, cracking pressure 3400 PSI. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AN6279 Rev 7 3 Valves adjustable to more than one class. Valves adjustable to the range of more than one class shall carry th
12、e designation of the lowest and highest class on the part number: for example, a valve adjustable from 1000 to 3850 PSI 3/8 inch tubing OD would be AN62796AD Installation clearance. The aircraft or engine manufacture shall allow clearance for the maximum dimensions shown on this drawing for installa
13、tion. Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Referenced documents. In addition to MIL-DTL-5515, this document references the following: AND10050 AND10387 CONCLUDING MATERIA
14、L Custodians: Preparing activity: Army GL DLA - CC Navy - AS Air Force - 99 (Project 1650-2010-008) DLA - CC Review activities: Army AT, AV, CR4 Navy MC, SA, SH Air Force 11, 71 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
