DLA A-A-59789 19-2009 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 250 X 270 INCH (6 35 x 6 86 mm) BODY SIZE WITH CAPTIVE REAR WEDGE SCREW ACTUATED.pdf
《DLA A-A-59789 19-2009 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 250 X 270 INCH (6 35 x 6 86 mm) BODY SIZE WITH CAPTIVE REAR WEDGE SCREW ACTUATED.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59789 19-2009 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 250 X 270 INCH (6 35 x 6 86 mm) BODY SIZE WITH CAPTIVE REAR WEDGE SCREW ACTUATED.pdf(7页珍藏版)》请在麦多课文档分享上搜索。
1、INCH-POUND AA59789/19 2 May 2009 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET HOLDER, ELECTRICAL CARD, WEDGE RETAINERS, 5 PIECE, FOR COLD PLATE APPLICATIONS, .250 X .270 INCH (6.35 x 6.86 mm) BODY SIZE, WITH CAPTIVE REAR WEDGE, 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 /19 Applicable CID sheet * Configuration (see table I) * Finish (see table I) * * Length (see table II) * Mounting (see table I) Example: AA59789/
4、19DH30S is the PIN for a hard black anodized finished, 2.8 inch (71.1 mm) long card holder. The card holder also features three tapped mounting holes for use with 256 UNF 2B fasteners and a screw self-locking element for added resistance to loosening. SALIENT CHARACTERISTICS. Performance. Card holde
5、rs shall hold the circuit card firmly in place providing high resistance to shock and vibration while providing maximum thermal transfer. Interface and physical dimensions. The card holders supplied to this CID specification sheet shall be as specified herein and meet the general requirements specif
6、ied 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 flats for mounting options “M“, “R“, “S“, “T“, and “U“. Cold plate slo
7、t width. The recommended 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 board of the circuit card assembly (see AA59789). Installation torque. The recommended nominal installation torque is follows: 6
8、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“. Configuration. The configuration of a card holder shall be as specified in table I. The details of a particular configuration consist of those on fi
9、gure 1, and may include those on figures 2 and 3. AMSC N/A FSC 5998 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/19 2table I tables I TABLE I. Configurations. Configuration Applicable figures Hardware options C 1 No added options L 1 and 2
10、 Screw self-locking element E 1 and 3 Additional mounting hole D 1, 2, and 3 Screw self-locking element and additional mounting hole figure 1 figures 1 1 Inches mm Inches mm Inches mm Inches mm .250 6.35 .270 6.86 .325 8.26 .80 20.32 NOTES: 1. Dimensions are in inches. Millimeter equivalents are giv
11、en for information only. 2. Unless otherwise specified, tolerances are for .02 inch (0.51 mm) for two place decimals and .010 (0.25 mm) for three place decimals. 3. Tolerance for the hole spacing is .005 inch (0.13 mm). 4. The across flats dimension for hex drive socket shall be .094 inch (2.38 mm).
12、 FIGURE 1. Relaxed and expanded dimensions. 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“ (chemical film), “E“ (electroless nickel), or “H“ (hard black anodize). Length, expanded, and r
13、elaxed dimensions. 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. Provided by IHSNot for ResaleNo reproduction or networking perm
14、itted without license from IHS-,-,-AA59789/19 3table II TABLE II. Additional assembly dimensions (see figure 1). 1/ PIN length designator Dimension “length“ .02 (0.5) Dimension “M“ .005 (0.13) Dimension “M/2“ .005 (0.13) 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
15、.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 specification sheet are as follows: “M“ (tapped metric M2.5 x
16、 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 figure 1 for mounting hole spacing requirements. Rivet mounting holes. The holes used for rivet mounting shall be .068/.073 inch (1.73/
17、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. Configuration hardware options. Card holders can have the following options. See table I for the correct PIN configuration identifie
18、r. Screw self-locking element (see figure 2). The use of a screw self-locking element will provide prevailing torque for resistance to loosening from shock vibration. Card holders requiring a screw self-locking element shall include configuration identifier “L“ in the PIN (see table I). FIGURE 2. Sc
19、rew self-locking element details. Additional mounting hole (see figure 3). Card holders requiring an additional mounting hole shall include configuration identifier “E“ in the PIN (see table I). FIGURE 3. Additional mounting hole details. Screw self-locking element and additional mounting hole. Card
20、 holders requiring a screw self-locking element and an additional mounting hole options shall include configuration identifier “D“ in the PIN (see table I). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/19 4NOTES. PIN. The PIN should be use
21、d 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 Cold Plate Applications, General Requirements F
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