DLA A-A-59590 23 B-2013 HOLDER ELECTRICAL CARD WEDGE RETAINERS 3 PIECE SCREW ACTUATED DRIVE 500 X 450 INCH BODY SIZE WITH SCREW RETENTION.pdf
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1、INCHPOUND AA59590/23B 23 March 2013 SUPERSEDING AA59590/23A 17 October 2007 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET HOLDER, ELECTRICAL CARD, WEDGE RETAINERS, 3 PIECE, SCREW ACTUATED DRIVE, .500 X .450 INCH BODY SIZE, WITH SCREW RETENTION 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 AA59590. CLASSIFICATION/PART IDENTIFICATION NUMBER (PIN). This commercial item descript
3、ion (CID) specification sheet uses a classification system which is included in the Part Identification Number (PIN) as shown in the following example (see notes). AA59590 CID number /23 Applicable CID specification sheet * Finish * Mounting * * Length (see table I) * Configuration (see table II) Ex
4、ample: AA59590/23EV58D is the PIN for a nickel plated, 5.8 inches (147 mm) long card holder with a flat washer, lockwasher, and screw self-locking element. The card holder also features two tapped mounting holes for use with 2-56 UNC 2A fasteners. SALIENT CHARACTERISTICS. Interface and physical dime
5、nsions. The card holders supplied to this CID specification sheet shall be as specified herein (see figures 1, 2, 3, 4, and table I) and meet the general requirements of CID AA59590. Material. Unless otherwise specified herein, the card holder materials shall be as specified in AA59590. Performance.
6、 Card holders shall hold the circuit card 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 surface
7、s. Screw retention (see figure 2). The screw retention feature is intended to prevent the unintentional disassembly of the card holder. The self-locking nut used for the screw retention feature shall be fabricated of a corrosion resistant material. Actuating screw hex drive socket. The dimension for
8、 hex drive socket shall be as specified on figure 1. Cold plate dimensions. The recommend cold plate slot width to accommodate the circuit card assembly with attached card holder is .525 inch (13.3 mm) plus the thickness of the printed board of the circuit card assembly (see AA59590). AMSC N/A FSC 5
9、998 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59590/23B 2 Inches mm Inches mm Inches mm Inches mm Inches mm .156 .19 3.96 4.8 .20 .25 5.1 6.4 .30 .31 7.62 7.9 .460 .500 11.68 12.70 .600 .70 15.24 17.8 NOTES: 1. Dimensions are in inches. Milli
10、meters 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. The tolerance for the mounting hole spacing is .005 inches (0.13 mm). 4. The across flats dimension for hex driv
11、e socket shall be .156 inch (3.96 mm) for mounting options “J“, “N“, “T“, and “V“. The across flats dimension for hex drive socket shall be a metric dimension of 3.0 mm (.118 inch) across flats for mounting option “G“. FIGURE 1. Relaxed and expanded dimensions, basic configuration. Provided by IHSNo
12、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59590/23B 3 Nominal installation torque. When card holders are used in cold plate applications, the nominal installation torque of each card holder shall be as follows: 31 inch-pounds (3.5 N-m) for assemblies using no
13、 options or option “W“ and from 34 to 36 inch-pounds (3.8 to 4.1 N-m) for assemblies using options “D“ or “E“. Screw retention (locknut). The screw retention feature is intended to prevent unintentional disassembly of the card holder shall be as specified in figure 2. The locknut shall be fabricated
14、 of a corrosion resistant material. FIGURE 2. Screw retaining self-locking nut details. Finish. The finish materials shall be as specified in AA59590. The wedge body finishes available for this CID specification sheet are as follows: “B“ (black anodize), “C“ (gold chemical film), “E“ (electroless ni
15、ckel), “H“ (hard black anodize), or “R“ (clear chemical film). Mounting. The mounting designators shall be as specified in AA59590. Except when using mounting option “N“, two mounting holes are required on the card holders. The mounting options available for this CID specification sheet are as follo
16、ws: “J“ (rivet mounting holes), “N“ (no mounting holes), “T“ (tapped 0-80 UNF 2B holes), “V“ (tapped 2-56 UNC 2B holes), or “G“ (tapped M2.5 x.45 metric holes). See figure 1 and table I for mounting hole spacing requirements. Card holders using mounting option “J“ may be shipped unassembled. Rivet m
17、ounting holes. The holes used for rivet mounting shall be .136 inch (3.45 mm) diameter, countersunk 100 degrees by .190/.200 inch (4.83/5.08 mm) diameter through holes with an access/clearance counterbore of .190/.200 inch (4.83/5.08 mm) diameter by .390 inch (9.91 mm) deep. Rivets. This card holder
18、 uses rivet style B as specified in AA59590 when rivet mounting is used. Length, expanded, and relaxed dimensions. The length designator shall be as specified in AA59590 and the lengths available for this CID specification sheet are listed in table I. The length, expanded, and relaxed dimensions sha
19、ll be as specified on figure 1. TABLE I. Assembly dimensions (see figure 1). PIN length designator Dimension “LENGTH“ .02 (0.5 mm) Dimension “B“ .03 (0.8 mm) Dimension “M“ .005 (0.13 mm) 28 2.8 (71 mm) 2.30 (58.4 mm) .90 (22.9 mm) 38 3.8 (97 mm) 3.30 (83.8 mm) 1.90 (48.3 mm) 48 4.8 (122 mm) 4.30 (10
20、9.2 mm) 2.90 (73.7 mm) 58 5.8 (147 mm) 5.30 (134.6 mm) 3.90 (99.1 mm) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59590/23B 4 Configuration. The configuration of a card holder shall be as specified in table II. The details of a particular confi
21、guration consist of those on figures 1 and 2, and may include those on figures 3 and 4. The correct PIN configuration identifier for each option is listed in table II. Card holders not requiring the options described by table II shall leave the configuration position in the PIN blank. TABLE II. Conf
22、iguration. Configuration designator Applicable figures Hardware added to basic configuration 1 and 2 No changes from basic configuration W 1, 2 and 3 Lockwasher and flat washer E 1, 2 and 4 Screw self-locking element D 1, 2, 3 and 4 Lockwasher, flat washer, and screw self-locking element Lockwasher
23、and flat washer (see figure 3). The use of a lockwasher and flat washer located under the screw head will provide for additional resistance to loosening of the card holder assembly from shock and vibration. Card holders requiring a lockwasher and flat washer option shall include a suffix “W“ in the
24、PIN (see classification and notes herein). FIGURE 3. Lockwasher and flat washer details. Screw self-locking element (see figure 4). The use of a self-locking element on the screw will provide a prevailing-torque for increased resistance to loosening of the card holder assembly from shock and vibrati
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