1、AMSC N/A FSC 4820 INCH-POUND MS28882G 27 March 2009 SUPERSEDING MS28882F 10 January 1977 DETAIL SPECIFICATION SHEET VALVE, FUEL CHECK, LOW PRESSURE, GASKET SEAL STRAIGHT THREAD CONNECTION This specification is approved for use by all Departments and Agencies of the Department of Defense. The require
2、ments for acquiring the product described herein shall consist of this specification sheet and MIL-V-7899, “Valves, Check, Aircraft Fuel System”. FIGURE 1. Check valve. Inactive for new design after 15 October 1998. Provided by IHSNot for ResaleNo reproduction or networking permitted without license
3、 from IHS-,-,-MS28882G 2 NOTES: 1. Ports both ends, bosses in accordance with SAE AS5202, “Port or Fitting End, Internal Straight Thread, Design Standard”. 2. Dimensions are in inches. Millimeters are given for general information only. 3. Tolerances for B dimension are as shown below: 4. The markin
4、g “hinge” is applicable only to swing type check valves. 5. Remove all burrs and break sharp edges (.016 inch (.406 mm) maximum). 6. Referenced documents shall be of the issue in effect on date of invitation for bid. 7. For design features, this standard takes precedence over procurement documents r
5、eferenced herein. 8. Unless otherwise noted, tolerances are .010 inch ( .254 mm). FIGURE 1. Check valve - Continued. Tubing O.D. (nominal) A .031 inch (.787 mm) B (for tolerances see note 3) C min D dia max Dash number size Inch mm Inch mm Inch mm Inch mm Inch mm -4 .250 6.35 2.031 51.587 1.063 27.0
6、00 .250 6.350 1.066 27.076-6 .375 9.525 2.031 51.587 1.063 27.000 .250 6.350 1.066 27.076-8 .500 12.70 2.344 59.538 1.187 30.150 .250 6.350 1.190 30.226-10 .625 15.875 2.844 72.238 1.187 30.150 .375 9.525 1.253 31.826-12 .750 19.050 3.500 88.900 1.500 38.100 .375 9.525 1.503 38.176-16 1.000 25.40 3.
7、594 91.288 1.812 46.025 .375 9.525 1.820 46.228-20 1.250 31.75 4.062 103.175 2.500 63.500 .500 12.700 2.508 63.703-24 1.500 38.10 4.625 117.475 2.750 69.850 .500 12.700 2.758 70.053-32 2.000 50.80 5.688 144.475 3.125 79.375 .500 12.700 3.500 88.900B (tolerance) B (tolerance) Dash number size Inch mm
8、 -4, -6, -8,-10, -12 +.003 -.006 (+.076) (-.152) -16, -20, -24 +.008 -.016 (+.203) (-.406) -32 +.010 -.000 (+.254) (-.000) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS28882G 3 TABLE I. Valve classification. REQUIREMENTS Intended use. These low
9、pressure check valves are suitable for use with hydrocarbon fuels, fuel vapors, and air. Materials. Materials shall comply to requirements listed in the procurement specification, MIL-V-7899. Finish. Finish shall comply to requirements listed in the procurement specification, MIL-V-7899. Qualificati
10、on. Check valves furnished under this specification sheet shall be products which are qualified for listing on Qualified Products List, QPL-7899. An online listing of products qualified to this specification may be found in the Qualified Products Database (QPD) at http:/assist.daps.dla.mil/quicksear
11、ch/ or http:/assist.daps.dla.mil . Locking of parts. Threaded parts shall be locked or safe-tied in accordance with National Aerospace Standard NASM 33540, “Safety Wiring, Safety Cabling, Cotter Pinning, General Practices for”. Safety cable is allowed as an alternate to safety wire. Self-locking nut
12、s shall not be used where loosening or disengagement could result in the nut or other parts entering the fuel system. The use of lockwashers or staking is prohibited. Marking. The valve assembly shall be marked in accordance with MIL-STD-130, “Identification Marking of U.S. Military Property”. The i
13、nformation should contain at least the following: (1) Valve, Check. (2) MS part number. (3) Manufacturers part number. (4) Manufacturers name or trade mark. Valve characteristic: See figure 1. Valve classification: See table I. Part or Identifying Number (PIN). The PIN is as follows: MS28882 A - 24
14、Dash number Class letter Specification High temperature Class Low temperature fuel and ambient Fuel Ambient A -55C (-67F) 57C (135F) 71C (160F) B -55C (-67F) 94C (200F) 177C (350F) C -55C (-67F) 150C (300F) 315C (600F) Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
15、nse from IHS-,-,-MS28882G 4 Reference documents. This document references the following: MIL-V-7899, “Valves, Check, Aircraft Fuel System”. MIL-STD-130, “Identification Marking of U.S. Military Property”. NASM 33540, “Safety Wiring, Safety Cabling, Cotter Pinning, General Practices for”. SAE AS5202,
16、 “Port or Fitting End, Internal Straight Thread, Design Standard”. 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. Custodians: Preparing activity: Army AV DLA - CC Navy - AS Air For
17、ce - 99 DLA - CC (Project 4820-2009-012) Reviewer activities: Army CR4, MI Air Force 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 http:/assist.daps.dla.mil/quicksearch/ or http:/www.assist.daps.dla.mil . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
