1、 Comments, suggestions, or questions on this document should be addressed to U.S. Army RDECOM, Tank Automotive Research, Development and Engineering Center, ATTN: RDTA-EN/STND/TRANS MS #268, 6501 E. 11 Mile Road, Warren, MI 48397-5000 or emailed to DAMI_STANDARDIZATIONconus.army.mil. Since contact i
2、nformation can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.daps.dla.mil. AMSC N/A FSC 2540 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. METRIC MIL-PRF-62550/2B(AT) 18 APRIL 2011 SUPERSE
3、DING MIL-PRF-62250/2A(AT) 30 May 1997 MIL-PRF-62550/1A(AT) 30 May 1997 PERFORMANCE SPECIFICATION SHEET HEATER ASSEMBLY, COMBUSTION VEHICULAR COMPARTMENT, 17.6 kW, DUAL AIR TYPE (METRIC) This specification is approved for use by the U.S. Army Tank-automotive and Armaments Command, Department of the A
4、rmy, and is available for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet MIL-PRF-62550(AT). REQUIREMENTS: Construction Heater assembly shall be constructed to the interface and en
5、velope dimensions of the following figure: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62550/2B(AT) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62550/2B(AT) 3 NOTES: 1. Perso
6、nnel heater must be in accordance with performance specification MIL-PRF-62550, Type II, Class II. 2. Unless otherwise specified, dimensions are in millimeters (mm). Tolerances are 1.50 on decimals, and 1 on angular dimensions. 3. Combustion air inlet shall be rotatable to any angle within a minimum
7、 range of 290 lockwise from point X. 4. Mounting tabs attached to the 198 - 205.0 mm diameter for the controls cover may exceed the envelope by no more than 26 mm. 5. Combustion air inlet may be any shape so long as it conforms to the specified dimensions. 6. Ventilation air intake may be anywhere i
8、n the heater envelope above the 38 mm strap space. 7. No fasteners or raised, sharp edges are allowed in the strap space areas. The diameter for these areas shall be between 200 and 205 mm. 8. A diameter of 200 to 202 mm shall be maintained for 18 mm starting from the opposite end from the combustio
9、n air inlet. 9. Referenced documents shall be of the issue in effect on the date of invitations for bid. 10. Interpret according to ASME Y14.5. 11. This is a critical item. 12. Diameter excluding areas specified by Notes 7 and 8. 13. Opening in controls cover must be at least 25 mm wide and allow no
10、t less than 13 mm access space about the centers of the fuel inlet and air bleed. 14. As long as the remaining drawing requirements are met, fuel inlet and air bleed valve are not required to be within the controls cover. 15. As long as Notes 7 and 8 and the remaining drawing requirements are met, s
11、crew heads shall protrude above the heater surface by no more than 4.0 mm. 16. External by-pass optional. Custodians: Preparing activity: Army - AT Army - AT (Project 2540-2011-002) 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-,-,-
