DLA A-A-59789 21-2011 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 260 INCH BODY SIZE WITH TWO OR NO MOUNTING HOLES SCREW ACTUATED.pdf
《DLA A-A-59789 21-2011 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 260 INCH BODY SIZE WITH TWO OR NO MOUNTING HOLES SCREW ACTUATED.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59789 21-2011 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 260 INCH BODY SIZE WITH TWO OR NO MOUNTING HOLES SCREW ACTUATED.pdf(11页珍藏版)》请在麦多课文档分享上搜索。
1、INCHPOUND AA59789/21 21 October 2011 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET HOLDER, ELECTRICAL CARD, WEDGE RETAINERS, 5 PIECE, FOR COLD PLATE APPLICATIONS, .225 X .260 INCH BODY SIZE, WITH TWO OR NO MOUNTING HOLES, SCREW ACTUATED The General Services Administration has authorized the use of
2、 this commercial item description for all federal agencies. The complete requirements for procuring electrical card holders described herein shall consist of this document and the latest issue in effect of AA59789. CLASSIFICATION/PART IDENTIFICATION NUMBER (PIN). This commercial item description (CI
3、D) specification sheet uses a classification system which is included in the Part Identification Number (PIN) as shown in the following example (see notes herein). AA59789 CID number /21 Applicable CID sheet * Configuration (see table I) * Finish * * Length (see table II) * Mounting (see table I) Ex
4、ample: AA59789/21WR55S is the PIN for a clear chemical film finished, 5.3 inch (134.6 mm) long card holder. The card holder also features two tapped mounting holes for use with 256 UNC 2B fasteners and a lockwasher and flat washer under the screw head for added resistance to loosening. SALIENT CHARA
5、CTERISTICS. Performance. Card holders shall hold the circuit card firmly in its installed position and prevent loosening or movement as a result of shock and vibration. It shall also provide a thermal transfer path from the circuit card assembly to the cold plate. Interface and physical dimensions.
6、The card holders supplied to this CID specification sheet shall be as specified herein and meet the general requirements specified in CID AA59789. Material. Unless otherwise specified herein, the card holder materials shall be as specified in AA59789. Actuating screw hex drive socket. The dimension
7、for hex drive socket shall be .094 inch (2.38 mm) across flats for mounting options “N“, “S“, “R“, “P“, and “T“. Cold plate slot width. The recommend cold plate slot width to accommodate the circuit card assembly with attached card holder is .300 inch (7.62 mm) plus the thickness of the printed boar
8、d of the circuit card assembly (see AA59789). Installation torque. The recommended nominal installation torque is as follows: 6 inch-pounds (68 N-cm) for assemblies of configuration “A“, “C“, “F“, or “W“ and 7.2 inch-pounds (81 N-cm) for assemblies of configurations “D“, “J“, “L“, or “N“. Configurat
9、ion. The configuration of a card holder shall be as specified in table I. The details of a particular configuration consist of those on figures 1 and 2, and may include those on figures 3 or 4. AMSC N/A FSC 5998 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
10、m IHS-,-,-AA59789/21 2 TABLE I. Configuration. Configuration Mounting body style (see figure 2) Mounting options Applicable figures Hardware options A A P, S, R, T 1 and 2 No hardware options added C C N, S, R, T F A P, S, R, T 1, 2, and 3 Lockwasher and flat washer W C N, S, R, T N A P, S, R, T 1,
11、2, and 4 Screw self-lock element L C N, S, R, T J A P, S, R, T 1, 2, 3, and 4 Lockwasher, flat washer, and screw self-lock element D C N, S, R, T Inches mm Inches mm Inches mm .125 .140 3.18 3.56 .225 .270 5.72 6.86 .30 .900 7.6 22.86 FIGURE 1. Relaxed and expanded dimensions (two mounting hole vers
12、ion shown). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/21 3 NOTES: 1. Dimensions are in inches. Millimeters are given for general information only. 2. Unless otherwise specified, tolerances are .02 inch (0.51 mm) for two place decimals a
13、nd .010 inch (0.25 mm) for three place decimals. 3. Screw and alignment spring not shown. See table II and figure 2 for hole spacing requirements. 4. The across flats dimension for hex drive socket shall be .094 inch (2.38 mm). 5. Mounting body style “A“ is capable of safely expanding to .330 inch (
14、8.38 mm) and mounting body style “C“ is capable of expanding to .325 inch (8.26 mm) minimum. 6. Maximum screw advance is .12 inch (3.0 mm) for mounting body style “A“ and .14 inch (3.6 mm) for mounting body style “C“. FIGURE 1. Relaxed and expanded dimensions Continued. Finish. The finish designator
15、 shall be as specified in AA59789. The finishes available for this CID specification sheet are as follows: “B“ (black anodize), “C“ (gold chemical film), “E“ (electroless nickel), “H“ (hard black anodize), or “R“ (clear chemical film). Length, expanded and relaxed dimensions. The length designator s
16、hall be as specified in AA59789. The lengths available for this CID specification sheet are listed in table II. The length, expanded and relaxed dimensions shall be as specified on figure 1. TABLE II. Assembly dimensions (see figure 1). 1/ PIN length designator Dimension “L“ .02 (0.5) Mounting body
17、style Dimension “A“ .01 (0.3) Dimension “B“ .02 (0.5) Dimension “M“ 2/ 50 4.8 (121.9) A 1.50 (38.1) .30 (7.6) .900 C 1.60 (40.6) .35 (8.9) .900 55 5.3 (134.6) A 2.00 (50.8) .55 (14.0) .900 C 1.60 (40.6) .35 (8.9) .900 60 5.8 (147.3) A 2.50 (63.5) .80 (20.3) .900 C 1.60 (40.6) .35 (8.9) .900 65 6.3 (
18、160.0) A 3.00 (71.2) 1.05 (26.7) .900 C 1.60 (40.6) .35 (8.9) .900 1/ Dimensions are in inches. Millimeters, in parenthesis, are given for general information only. 2/ Tolerance for the hole spacing is .005 inch (0.51 mm). Mounting body style (see figure 2 and table II). Two mounting body styles are
19、 available on this CID specification sheet, style A or style C. The primary difference in the two mounting body styles are the location of mounting holes on the mounting body as depicted on figure 2. Mounting body style A always has two locations for fasteners or indexing pins centered on the mounti
20、ng body that are .900 inch (22.86 mm) apart. Mounting body style C can have two holes or no holes on the mounting body. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/21 4 Inches mm .040 .062 1.02 1.57 NOTES: 1. Dimensions are in inches. Mil
21、limeters are given for general information only. 2. Unless otherwise specified, tolerances are .02 inch (0.51 mm) for two place decimals and .010 inch (0.25 mm) for three place decimals. 3. See table II for dimensions B and M. FIGURE 2. Mounting body style details. Mounting. The mounting designators
22、 shall be as specified in AA59789. The mounting options available for this CID specification sheet are as follows: “N“ (no mounting holes; mounting body style C only), “P“ (.062 x .040 index pins; mounting body style A only), “R“ (rivet mount holes with counterbore and countersink), “S“ (tapped 256
23、holes), or “T“ (tapped 080 holes). See figure 1 for mounting hole spacing requirements. Card holders using mounting option “P“ and “R“ may be shipped unassembled. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/21 5 Rivet mount holes. The hol
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