1、AMSC N/A FSC 5960 INCH-POUND MIL-DTL-24251/3D 11 July 2013 SUPERSEDING MIL-DTL-24251/3C 15 February 2008 DETAIL SPECIFICATION SHEET SHIELD, ELECTRON TUBE, HEAT DISSIPATING 7 AND 9 PIN, MINIATURE (SPLIT SHELL) This specification sheet is inactive for new design after 11 July 2013. The requirements fo
2、r acquiring the product described herein shall consist of this specification sheet and MIL-DTL-24251. This specification is approved for use by all Departments and Agencies of the Department of Defense. NOTES: 1. All dimensions are in inches. 2. Millimeters are in parentheses. 3. Metric equivalents
3、(to the nearest 0.01 mm) are given for general information only and are based upon 1 inch = 25.4 mm. 4. Unless otherwise specified, tolerance is 2 places .010 (0.25 mm); 3 places .005 (0.13 mm). FIGURE 1. Dimensions and configuration. Provided by IHSNot for ResaleNo reproduction or networking permit
4、ted without license from IHS-,-,-MIL-DTL-24251/3D 2 TABLE 1. Characteristics. Dash no. Heat dissipation temp. reduction in C (minimum) A .060 (1.48) B Max C .015 (0.38) Weight grams max 2/ Tube envelope Retainer (base) ref Tube socket ref Style Length nom. 1 40 1.343 (34.11) 1.593 (40.46) .875 (22.2
5、3) 11.0 T-5 1/2 1.125 (28.58) M24251/4-1 MIL-PRF-12883/10 2 70 1.843 (46.81) 2.093 (53.16) .875 (22.23) 15.0 T-5 1/2 1.500 (38.10) M24251/4-1 MIL-PRF-12883/10 3 75 2.343 (59.51) 2.593 (65.86) .875 (22.23) 19.0 T-5 1/2 2.000 (50.80) M24251/4-1 MIL-PRF-12883/10 4 35 1.343 (34.11) 1.593 (40.46) 1.000 (
6、25.40) 12.0 T-6 1/2 1.125 (28.45) M24251/4-2 MIL-PRF-12883/11 5 85 1.843 (46.81) 2.093 (53.16) 1.000 (25.40) 16.0 T-6 1/2 1.562 (39.62) M24251/4-2 MIL-PRF-12883/11 6 75 2.343 (59.51) 2.593 (65.86) 1.000 (25.40) 20.0 T-6 1/2 2.000 (50.80) M24251/4-2 MIL-PRF-12883/11 7 1/ 75 2.562 (65.07) 2.812 (71.42
7、) 1.000 (25.40) 20.0 T-6 1/2 2.437 (61.90) M24251/4-2 MIL-PRF-12883/11 1/ This shield is for use with noval tubes which are longer than usual tubes, for example, tube type 6094. 2/ Weight of shield assembly less base. REQUIREMENTS: The shield, locking mechanism, liner, and other parts shall be desig
8、ned to meet the requirements in MIL-DTL-24251, and to fit the tube envelope, tube socket, and retainer (base) specified in table I. Dimensions and configuration: See figure 1 and table I. Material: Liner: Beryllium copper, ASTM-B194. Shell: Aluminum alloy, SAE-AMS-QQ-A-250, and ASTM-B209. Finish: Li
9、ner: Black cadmium plate, SAE-AMS-QQ-P-416, class 3, type II, optional finish: Henderlube or equal. Shell: Black anodize - type II in accordance with MIL-A-8625, or black matte in accordance with MIL-DTL-5541, optional finish: Henderlube or equal. Installation force shall not exceed 20 pounds. Engag
10、ing torque: 20 inch-pounds maximum. The Part or Identifying Number (PIN) consists of the basic number of this specification sheet, preceded by the letter “M“, and a dash number taken from table I. Example: M24251/3-1 Basic document Dash number number from table Provided by IHSNot for ResaleNo reprod
11、uction or networking permitted without license from IHS-,-,-MIL-DTL-24251/3D 3 Referenced Documents: In addition to MIL-DTL-24251, this document references the following: MIL-DTL-5541 MIL-A-8625 MIL-DTL-12883/10 MIL-DTL-12883/11 ASTM-B194 ASTM-B209 SAE-AMS-QQ-A-250 SAE-AMS-QQ-P-416 The margins of th
12、is specification are marked with vertical lines to indicate where changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requireme
13、nts of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 85 (Project 5960-2013-017) DLA - CC Review activities: Army - MI Navy - CG, MC Air Force - 19,
14、 99 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.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
