DLA A-A-59789 23-2012 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 225 INCH BODY SIZE WITH TWO THREE OR FOUR MOUNTING HOLES SCREW ACTUATED 7 0 I.pdf
《DLA A-A-59789 23-2012 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 225 INCH BODY SIZE WITH TWO THREE OR FOUR MOUNTING HOLES SCREW ACTUATED 7 0 I.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59789 23-2012 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 225 INCH BODY SIZE WITH TWO THREE OR FOUR MOUNTING HOLES SCREW ACTUATED 7 0 I.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、INCHPOUND AA59789/23 23 February 2012 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET HOLDER, ELECTRICAL CARD, WEDGE RETAINERS, 5 PIECE, FOR COLD PLATE APPLICATIONS, .225 X .225 INCH BODY SIZE, WITH TWO, THREE, OR FOUR MOUNTING HOLES, SCREW ACTUATED, 7.0 INCH THROUGH 8.5 INCH ASSEMBLY LENGTH The Gen
2、eral Services Administration has authorized the use of 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 IDENTIFICAT
3、ION NUMBER (PIN). This commercial item description (CID) 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 /23 Applicable CID sheet * Configuration (see table I) * Finish
4、 * * Length (see table II) * Mounting (see table I) Example: AA59789/23 FR70S is the PIN for a clear chemical film finished, 6.8 inch (173 mm) long card holder. The card holder also features four tapped mounting holes for use with 256 UNC 2B fasteners and a lockwasher and flat washer under the screw
5、 head for added resistance to loosening. SALIENT CHARACTERISTICS. 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
6、to the cold plate. Interface and physical dimensions. 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 AA5
7、9789. Actuating screw hex drive socket. The dimension for hex drive socket shall be .094 inch (2.38 mm) across flats for mounting options “S“, “R“, “P“, “U“, and “T“. Cold plate slot width. The recommend cold plate slot width to accommodate the circuit card assembly with attached card holder is .300
8、 inch (7.62 mm) plus the thickness of the printed board 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 assembli
9、es of configurations “D“, “J“, “L“, or “N“. AMSC N/A FSC 5998 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/23 2 Configuration. The configuration of a card holder shall be as specified in table I. The details of a particular configuration c
10、onsist of those on figures 1 and 2, and may include those on figures 3 or 4. Finish. The finish designator 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 blac
11、k anodize), or “R“ (clear chemical film). TABLE I. Configuration. Configuration Number of mounting holes Mounting body style (see figure 2) Mounting options Applicable figures Hardware options A 4 A S, R, T, P 1 and 2 No hardware options added B 1/ C 2 C S, R, T, U Q 3 F 4 A S, R, T, P 1, 2, and 3 L
12、ockwasher and flat washer G 1/ W 2 C S, R, T, U Y 3 N 4 A S, R, T, P 1, 2, and 4 Screw self-lock element P 1/ L 2 C S, R, T, U M 3 J 4 A S, R, T, P 1, 2, 3, and 4 Lockwasher, flat washer, and screw self-lock element K 1/ D 2 C S, R, T, U R 3 1/ This configuration uses index pins and no mounting hole
13、s are present (see figure 2). Length, expanded and relaxed dimensions. The length designator shall 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. Mounting body
14、style (see figure 2 and table II). Two mounting body styles are 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 has either four
15、 mounting holes for fasteners or two indexing pins centered on the mounting body that are .900 inch (22.86 mm) apart. Mounting body style C can have two or three holes on the mounting body. Also, the distance between the mounting holes increases for assembly lengths of 7.5 inches (190.5 mm) and over
16、 (see table II). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/23 3 Inches mm Inches mm Inches mm .125 .140 3.18 3.56 .225 .270 5.72 6.86 .30 .900 7.6 22.86 NOTES: 1. Dimensions are in inches. Millimeters are given for general information o
17、nly. 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. 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
18、 .094 inch (2.38 mm). 5. Mounting body style “A“ is capable of safely expanding to .330 inch (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
19、 style “C“. FIGURE 1. Relaxed and expanded dimensions (mounting body “C“ with two mounting holes shown). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/23 4 TABLE II. Additional assembly dimensions (see figures 1 and 2). 1/ PIN length design
20、ator Dimension “L“ .02 (0.5) Mounting body style Dimension “A“ .01 (0.3) Dimension “B“ 2/ Dimension “M“ 3/ Dimension “E“ 3/ Dimension “F“ 3/ 70 6.8 (172.7) A 4/ 3.50 (88.9) 1.30 (33.0) .900 (22.9) A 5/ 3.50 (88.9) .40 (10.2) 2.700 (68.6) 1.800 (45.7) .900 (22.9) C 6/ 2.95 (74.9) C 7/ 1.60 (40.6) 2.9
21、5 (74.9) .900 (22.9) .45 (11.4) 75 7.3 (185.4) A 4/ 4.00 (101.6) 1.55 (39.4) .900 (22.9) A 5/ 4.00 (101.6) .65 (16.5) 2.700 (68.6) 1.800 (45.7) .900 (22.9) C 6/ 3.20 (81.3) C 7/ 3.20 (81.3) .900 (22.9) .45 (11.4) 80 7.8 (198.1) A 4/ 3.50 (88.9) 1.30 (33.0) .900 (22.9) A 5/ 3.50 (88.9) .40 (10.2) 2.7
22、00 (68.6) 1.800 (45.7) .900 (22.9) C 6/ 2.95 (74.9) C 7/ 2.95 (74.9) 1.900 (48.3) .95 (24.1) 85 8.3 (210.8) A 4/ 4.00 (101.6) 1.55 (39.4) .900 (22.9) A 5/ 4.00 (101.6) .65 (16.5) 2.700 (68.6) 1.800 (45.7) .900 (22.9) C 6/ 3.20 (81.3) C 7/ 3.20 (81.3) 1.900 (48.3) .95 (24.1) 1/ Dimensions are in inch
23、es. Millimeters, in parenthesis, are given for general information only. 2/ Tolerance for the hole offset is .02 inch (0.5 mm) for mounting body style A and .045 inch (1.14 mm) for mounting body style C. 3/ Tolerance for the hole spacing is .005 inch (0.51 mm). 4/ Mounting body with 2 indexing pins
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