DLA A-A-59789 7 A-2011 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 195 X 250 INCH BODY SIZE SCREW ACTUATED.pdf
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1、INCHPOUND AA59789/7A 7 November 2011 SUPERSEDING AA59789/7 October 25, 2006 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET HOLDER, ELECTRICAL CARD, WEDGE RETAINERS, 5 PIECE, FOR COLD PLATE APPLICATIONS, .195 X .250 INCH BODY SIZE, SCREW ACTUATED The General Services Administration has authorized th
2、e 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 IDENTIFICATION NUMBER (PIN). This commercial item descrip
3、tion (CID) specification sheet uses a classification system which is included in the PIN as shown in the following example (see notes). AA59789 CID number /07 Applicable CID sheet * Configuration (see table I) * Finish (see table I) * * Length (see table II) * Mounting (see table II) Example: AA5978
4、9/07DE30T is the PIN for an electroless nickel finished, 2.8 inch (71.1 mm) long card holder. The card holder also features three tapped mounting holes for use with 080 UNF 2B fasteners and a screw selflocking element for added resistance to loosening. SALIENT CHARACTERISTICS. Performance. Card hold
5、ers shall hold the circuit card firmly in place and prevent loosening or movement as a result from shock and vibration while providing a thermal transfer path from the circuit card assembly to the cold plate. Interface and physical dimensions. The card holders supplied to this CID specification shee
6、t 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 for hex drive socket shall be .094 inch (2.38 mm) across
7、 flats for mounting options “M“, “R“, “S“, “T“, and “U“. Cold plate slot width. The recommend cold plate slot width to accommodate the circuit card assembly with attached card holder is .220 inch (5.59 mm) plus the thickness of the printed board of the circuit card assembly (see AA59789). Installati
8、on torque. The recommended nominal installation torque is follows: 6 inch-pounds (0.7 N-m) for card holders of configuration “C“ or “E“ and 7 to 8 inch-pounds (0.8 to 0.9 N-m) for assemblies of configurations “L“ or “D“. AMSC N/A FSC 5998 Provided by IHSNot for ResaleNo reproduction or networking pe
9、rmitted without license from IHS-,-,-AA59789/7A 2 Configuration. The configuration of a card holder shall be as specified in table I. The details of a particular configuration consist of those on figure 1, and may include those on figures 2 and 3. TABLE I. Configuration. Configuration Applicable fig
10、ures Hardware options C 1 No added options L 1 and 2 Screw self-locking element E 1 and 3 Additional mounting hole D 1, 2, and 3 Screw self-locking element and additional mounting hole Inches mm Inches mm Inches mm Inches mm .197 5.00 .236 5.99 .250 6.35 .80 20.32 NOTES: 1. Dimensions are in inches.
11、 Millimeter equivalents are given for general information only. 2. Unless otherwise specified, tolerances are for .02 inch (0.51 mm) for two place decimals and .010 inch (0.25 mm) for three place decimals. 3. Tolerance for the hole spacing (dimension M) is .005 inch (0.51 mm). 4. The across flats di
12、mension for hex drive socket shall be .094 inch (2.38 mm). FIGURE 1. Relaxed and expanded dimensions. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/7A 3 Finish. The finish designator shall be as specified in AA59789. The finishes available
13、for this CID specification sheet are as follows: “B“ (black anodize), “E“ (electroless nickel), “H“ (hard black anodize) or “R“ (clear chemical film). Length, expanded and relaxed dimensions. The length designator shall be as specified in AA59789 and the lengths available for this CID specification
14、sheet are listed in table II. The length, expanded, and relaxed dimensions shall be as specified on figure 1. TABLE II. Additional assembly dimensions (see figure 1). 1/ PIN length designator Dimension “Length“ .02 (0.5) Dimension “M“ .01 (0.3) Dimension “M/2“ .02 (0.5) 30 2.80 (71.1) .90 (22.9) .45
15、 (11.4) 40 3.80 (96.5) 1.90 (48.3) .95 (24.1) 50 4.80 (121.9) 2.90 (73.7) 1.45 (36.8) 1/ Dimensions are in inches. Millimeters, in parenthesis, are given for information only. Mounting. The mounting designators shall be as specified in AA59789. The mounting options available for this CID specificati
16、on sheet are as follows: “M“ (tapped metric M2.5 x 0.45 holes), “R“ (rivet mount holes with counterbore and countersink), “S“ (tapped 2-56 holes), “T“ (tapped 0-80 holes), or “U“ (tapped metric M2 x 0.4 holes). See figures 1 and 3 for mounting hole spacing requirements. Rivet mounting holes. The hol
17、es used for rivet mounting shall be .068/.073 inch (1.73/1.85 mm) diameter, countersunk 100 degrees by .060 inch (1.52 mm) deep. Rivets. This card holder uses rivet type A as specified in AA59789 when rivet mounting is used. Hardware options. Card holders can have the following hardware options: No
18、hardware options added (see figure 1), screw self lock element (see figure 2), additional mounting hole (see figure 3), or screw self lock element and additional mounting hole (see figures 2 and 3). See table I for the correct PIN configuration identifier. No hardware options added. The base configu
19、ration of the card holder is as depicted by figure 1. Card holders not requiring any added hardware options shall include configuration identifier “C“ in the PIN (see classification, notes, and table I). Screw self-locking element (see figure 2). The use of a screw self-locking element will provide
20、prevailing torque for resistance to loosening from shock vibration. The screw self-locking element shall be as specified in AA59789. Card holders requiring a screw self-locking element shall include configuration identifier “L“ in the PIN (see classification, notes, and table I). FIGURE 2. Screw sel
21、f-locking element details. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/7A 4 Additional mounting hole (see figure 3). Card holders requiring an additional mounting hole shall include configuration identifier “E“ in the PIN (see classificat
22、ion, notes, and table I). FIGURE 3. Additional mounting hole details. Screw self-locking element and additional mounting hole. Card holders requiring a screw self-locking element and an additional mounting hole options shall include configuration identifier “D“ in the PIN (see classification, notes,
23、 and table I). NOTES. PIN. The PIN should be used for Government purposes to buy commercial products to this CID specification sheet. See the classification section for PIN format example. Source of documents. Commercial Item Description AA59789 Holder, Electrical Card, Wedge Retainers, 5 Piece, For
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