DLA A-A-59590 20 B-2012 HOLDER ELECTRICAL CARD WEDGE RETAINERS 3 PIECE SCREW ACTUATED DRIVE 260 X 260 INCH BODY SIZE WITH VISUAL LOCK INDICATION AND SCREW RETENTION.pdf
《DLA A-A-59590 20 B-2012 HOLDER ELECTRICAL CARD WEDGE RETAINERS 3 PIECE SCREW ACTUATED DRIVE 260 X 260 INCH BODY SIZE WITH VISUAL LOCK INDICATION AND SCREW RETENTION.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59590 20 B-2012 HOLDER ELECTRICAL CARD WEDGE RETAINERS 3 PIECE SCREW ACTUATED DRIVE 260 X 260 INCH BODY SIZE WITH VISUAL LOCK INDICATION AND SCREW RETENTION.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、INCHPOUND AA59590/20B 20 May 2012 SUPERSEDING AA59590/20A 7 July 2007 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET HOLDER, ELECTRICAL CARD, WEDGE RETAINERS, 3 PIECE, SCREW ACTUATED DRIVE .260 X .260 INCH BODY SIZE, WITH VISUAL LOCK INDICATION AND SCREW RETENTION The General Services Administratio
2、n 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 AA59590. CLASSIFICATION/PART IDENTIFICATION NUMBER (PIN). This comm
3、ercial 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). AA59590 CID number /20 Applicable CID specification sheet * Finish * Mounting * * Length (see table I) * Conf
4、iguration Example: AA59590/20ET58E is the PIN for a nickel plated, 5.8 inches (147 mm) long card holder with a visual lock indication and a screw self-locking element. The card holder also features two tapped 0-80 UNF mounting holes for use with fasteners. SALIENT CHARACTERISTICS. Performance. Card
5、holders shall hold the circuit card assembly firmly in its installed position and provide high resistance to loosening due to shock and vibration. Card holders shall also provide maximum thermal transfer from the circuit card assembly to the cold plate or heat sink surfaces. The screw retention feat
6、ure is intended to prevent unintentional disassembly of the card holder. Interface and physical dimensions. The card holders supplied to this CID specification sheet shall be as specified herein (see figures 1, 2, 3, 4, 5 and table I) and meet the general requirements of CID AA59590. Material. Unles
7、s otherwise specified herein, the card holder materials shall be as specified in AA59590. Actuating screw hex drive socket. The dimension for hex drive socket shall be .094 inch (2.39 mm) for mounting options “J“, “N“, “T“ and “V“. The dimension for hex drive socket shall be a metric dimension of 2.
8、5 mm (.098 inch) across flats for mounting option “G“. Cold plate dimensions. Recommend 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 AA59590). AMSC N/A FSC 599
9、8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59590/20B 2 Inches mm Inches mm Inches mm Inches mm Inches mm .20 .25 5.1 6.4 .260 .270 6.60 6.86 .27 .30 6.9 7.62 .325 .39 8.26 9.9 .56 .70 14.2 17.8 NOTES: 1. Dimensions are in inches. Millimeters
10、 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 drive sock
11、et shall be .094 inch (2.39 mm) for mounting options “J“, “N“, “T“, and “V“. The across flats dimension for hex drive socket shall be a metric dimension of 2.5 mm (.098 inch) across flats for mounting option “G“. FIGURE 1. Relaxed and expanded dimensions, basic configuration. Provided by IHSNot for
12、ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59590/20B 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: 10 inch-pounds (1.1 N-m) for assemblies using no optio
13、ns or option “W“ and 12 inch-pounds (1.4 N-m) for assemblies using options “D“ or “E“. Screw retention locknut (see figure 2). Card holders shall have a screw retention locknut intended to prevent unintentional disassembly of the card holder. The locknut shall be fabricated of a corrosion resistant
14、material. FIGURE 2. Screw retaining self-locking nut details. Visual lock indicator (see figure 3). Card holders shall have a visual indicator to show when the card holder assembly is in its relaxed (unlocked) state. When the card holder assembly is in the relaxed state, the end of the actuating scr
15、ew shall display a red band on the side of the screw. When the actuating screw on the card holder has been tightened so that the assembly is in the expanded (locked) position, this red band shall be concealed. FIGURE 3. Visual lock indicator details. Finish. The finish designator shall be as specifi
16、ed in AA59590. The wedge body finishes available for this CID specification sheet are as follows: “B“ (black anodize), “C“ (gold chemical film), “E“ (electroless nickel), “H“ (hard black anodize), or “R“ (clear chemical film). Mounting. The mounting designators shall be as specified in AA59590. Exce
17、pt 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 follows: “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
18、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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59590/20B 4 Counterbore holes (for rivet mo
19、unting). The holes used for rivet mounting shall be .068/.073 inch (1.73/1.85 mm) diameter, countersunk 100 degrees by .140 inch (3.56 mm) diameter through holes with an access/clearance counterbore of .156 inch (3.96 mm) diameter by .200 inch (5.08 mm) deep. Rivets. This card holder uses rivet type
20、 A 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 shall be as specifie
21、d on figure 1. TABLE I. Assembly dimensions (see figure 1). 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) 33 3.3 (84 mm) 2.80 (71.1 mm) 1.40 (35.6 mm) 38 3.8 (97 mm) 3.30 (83.8 mm) 1.90 (48
22、.3 mm) 43 4.3 (109 mm) 3.80 (96.5 mm) 2.40 (61.0 mm) 48 4.8 (122 mm) 4.30 (109.2 mm) 2.90 (73.7 mm) 53 5.3 (135 mm) 4.80 (121.9 mm) 3.40 (86.4 mm) 58 5.8 (147 mm) 5.30 (134.6 mm) 3.90 (99.1 mm) 1/ Dimensions are in inches. Millimeters, in parenthesis, are given for general information only. Configur
23、ation. The configuration of a card holder shall be as specified in table II. The details of a particular configuration consist of those on figures 1, 2, and 3, and may include those on figures 4 and 5. The correct PIN configuration identifier for each option is listed in table II. Card holders not r
24、equiring the options described by table II shall leave the configuration position in the PIN blank. TABLE II. Configuration. Configuration Applicable figures Hardware options 1, 2 and 3 No changes from basic configuration W 1, 2, 3 and 4 Lockwasher and flat washer E 1, 2, 3 and 5 Screw self-locking
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