DLA A-A-59789 9 B-2012 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 225 INCH BODY SIZE SCREW ACTUATED.pdf
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1、INCHPOUND AA59789/9B 9 August 2012 SUPERSEDING AA59789/9A 16 November 2009 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET HOLDER, ELECTRICAL CARD, WEDGE RETAINERS, 5 PIECE, FOR COLD PLATE APPLICATIONS, .225 X .225 INCH BODY SIZE, SCREW ACTUATED The General Services Administration has authorized the
2、 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 descript
3、ion (CID) specification sheet uses a classification system which is included in the PIN as shown in the following example (see notes). AA59789 CID number /09 Applicable CID sheet * Configuration (see table I) * Finish * * Length (see table II) * Mounting Example: AA59789/09DE30T is the PIN for an el
4、ectroless 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 holders shall hold the circuit car
5、d assembly it is attached to firmly in its installed position and prevent loosening or movement as a result of shock and vibration. The card holder shall also provide a thermal transfer path from the circuit card assembly to the cold plate or heat sink surfaces. Interface and physical dimensions. Th
6、e 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 fo
7、r hex drive socket shall be .094 inch (2.38 mm) across 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 .250 inch (6.35 mm) plus the thickness of the printed board
8、of the circuit card assembly (see AA59789). Installation 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 Provide
9、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/9B 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
10、. TABLE I. Configuration. Configuration Applicable figures 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 .225 5.72 .230 5.84 .
11、290 7.37 .80 20.32 FIGURE 1. Relaxed and expanded dimensions. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/9B 3 NOTES: 1. Dimensions are in inches. Millimeter equivalents are given for general information only. 2. Unless otherwise specifie
12、d, tolerances are .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 is .005 inch (0.51 mm). 4. The across flats dimension for hex drive socket shall be .094 inch (2.38 mm). FIGURE 1. Relaxed and expanded dimensions Continued
13、. Finish. The wedge body finish designator shall be as specified in AA59789. The wedge body finishes available 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 dimensi
14、ons. The length designator shall be as specified in AA59789 and 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. Additional card holder dimensions (see figure 1). 1/ PIN length des
15、ignator 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 (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 general information only.
16、Mounting. The mounting designators shall be as specified in AA59789. The mounting options available for this CID specification 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 “
17、U“ (tapped metric M2 x 0.4 holes). See figure 1 and table II for mounting hole spacing requirements. Rivet mounting holes. The holes used for rivet mounting shall be .068/.073 inch (1.73/1.85 mm) diameter through holes, countersunk 100 degrees by .060 inch (1.52 mm) deep. Rivets. This card holder us
18、es rivet type A as specified in AA59789 when rivet mounting is used. Configuration hardware options. Card holders can have the following options: no added hardware, screw self-locking element (see figure 2), an additional mounting hole (see figure 3), or a combination of both screw self-locking elem
19、ent and third mounting. See table I for the correct PIN configuration identifier for the hardware option needed. Card holders requiring no added hardware options shall include configuration identifier “C“ in the PIN (see classification and notes section herein). Screw self-locking element (see figur
20、e 2). The use of a screw self-locking element on the screw will provide a prevailing-torque for increased resistance to loosening of the card holder assembly from shock and vibration. The screw self-locking element shall be as specified in AA59789. Card holders requiring a screw self-locking element
21、 shall include configuration identifier “L“ in the PIN (see table I, classification and notes section herein). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/9B 4 FIGURE 2. Screw self-locking element details. Additional mounting hole (see fi
22、gure 3). Card holders requiring an additional mounting hole shall include configuration identifier “E“ in the PIN (see table I, classification and notes section herein). FIGURE 3. Additional mounting hole details. Screw self-locking element and additional mounting hole. Card holders requiring a scre
23、w self-locking element and an additional mounting hole option shall include configuration identifier “D“ in the PIN (see table I, classification and notes section herein). NOTES. PIN. The PIN should be used for Government purposes to buy commercial products to this CID specification sheet. See the c
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