DLA A A 59789 4A-2010 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 225 INCH BODY SIZE WITH TWO MOUNTING HOLES VISUAL LOCK INDICATION AND SCREW A.pdf
《DLA A A 59789 4A-2010 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 225 INCH BODY SIZE WITH TWO MOUNTING HOLES VISUAL LOCK INDICATION AND SCREW A.pdf》由会员分享,可在线阅读,更多相关《DLA A A 59789 4A-2010 HOLDER ELECTRICAL CARD WEDGE RETAINERS 5 PIECE FOR COLD PLATE APPLICATIONS 225 X 225 INCH BODY SIZE WITH TWO MOUNTING HOLES VISUAL LOCK INDICATION AND SCREW A.pdf(9页珍藏版)》请在麦多课文档分享上搜索。
1、INCH-POUND AA59789/4A 22 July 2010 SUPERSEDING AA59789/4 26 March 2006 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET HOLDER, ELECTRICAL CARD, WEDGE RETAINERS, 5 PIECE, FOR COLD PLATE APPLICATIONS, .225 X .225 INCH BODY SIZE, WITH TWO MOUNTING HOLES, VISUAL LOCK INDICATION, AND SCREW ACTUATION AND
2、RETENTION The General Services Administration 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 AA59789. CLASSIFICATION
3、/PART IDENTIFICATION NUMBER (PIN). This commercial 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). AA59789 CID number /04 Applicable CID sheet * Configuration (see table I
4、) * Finish (see table I) * * Length (see table II) * Mounting (see table I) Example: AA59789/04DE65S is the PIN for a visual lock indicating, electroless nickel finished, 6.3 inch (160.0 mm) long card holder with a retained actuating screw. The card holder also features two tapped mounting holes for
5、 use with 256 UNC 2B fasteners and a combination of a lockwasher, flat washer, and screw self-lock element for added resistance to loosening. SALIENT CHARACTERISTICS. Performance. Card holders shall hold the circuit card firmly in place providing high resistance to shock and vibration while providin
6、g 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 specified in CID AA59789. Card holders shall have a visual indicator to show when the assembly is in its relaxed (un
7、locked) and expanded (locked) state. Card holders shall also have a screw retention feature to prevent unintentional disassembly of the card holder. Material. The card holder materials shall be as specified in AA59789. Actuating screw hex drive socket. The dimension for hex drive socket shall be .09
8、4 inch (2.38 mm) across flats for mounting options “S“, “R“, “P“, “U“, and “T“. Cold plate slot width. The recommended slot width for cold plates used with this card holder is .250 inch (6.35 mm) plus the thickness of the circuit card assembly printed board (see AA59789). Installation torque. The re
9、commended nominal installation torque is as follows: 6 inch-pounds (0.68 N-m) for assemblies of configuration “A“, “C“, “F“, or “W“ and 7.2 inch-pounds (0.81 N-m) for assemblies of configurations “D“, “J“, “L“, or “N“. AMSC N/A FSC 5998 Provided by IHSNot for ResaleNo reproduction or networking perm
10、itted without license from IHS-,-,-AA59789/4A 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 figures 1, 2, and 3, and may include those on figures 4 and 5. TABLE I. Configurations. Configuration Moun
11、ting body style Finish options Mounting options Applicable figures Hardware options A A B, C, H, P S, R, T, P 1, 2, and 3 No hardware options added C C B, C, E, H S, R, T, U F A B, C, H, P S, R, T, P 1, 2, 3, and 4 Lockwasher and flat washer W C B, C, E, H S, R, T, U N A B, C, H, P S, R, T, P 1, 2,
12、3, and 5 Screw self-lock element L C B, C, E, H S, R, T, U J A B, C, H, P S, R, T, P 1, 2, 3, 4, and 5 Lockwasher, flat washer, and screw self-lock element D C B, C, E, H S, R, T, U Finish. The finish designator shall be as specified in AA59789. The finishes available for this CID specification shee
13、t are as follows: “B“ (black anodize), “C“ (gold chemical film), “E“ (electroless nickel), “P“ (electrodeposited nickel), or “H“ (hard black anodize). The center mounting wedge is not finished for card holders using mounting option “P“. Length, expanded and relaxed dimensions. The length designator
14、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 assembly dimensions (see figure 1). 1/ PIN length designator Dimension “L“ .02 (0.5
15、) Mounting body style Dimension “A“ .01 (0.3) Dimension “B“ .02 (0.5) Dimension “C“ minimum 50 4.8 (121.9) A 1.50 (38.1) .30 (7.6) .275 (6.99) C 1.50 (38.1) .30 (7.6) .275 (6.99) 55 5.3 (134.6) A 2.00 (50.8) .55 (14.0) .275 (6.99) C 1.50 (38.1) .30 (7.6) .275 (6.99) 60 5.8 (147.3) A 2.50 (63.5) .80
16、(20.3) .275 (6.99) C 1.50 (38.1) .30 (7.6) .275 (6.99) 65 6.3 (160.0) A 3.00 (71.2) 1.05 (26.7) .275 (6.99) C 1.50 (38.1) .30 (7.6) .275 (6.99) 1/ Dimensions are in inches. Millimeters are given for information only. Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
17、e from IHS-,-,-AA59789/4A 3 Inches mm Inches mm Inches mm Inches mm .165 .225 4.19 5.72 .235 .30 5.97 7.6 .31 .33 7.9 8.4 .50 .900 12.7 22.86 NOTES: 1. Dimensions are in inches. Millimeter equivalents are given for general information only. 2. Unless otherwise specified, tolerances are for .02 inch
18、(0.51 mm) for two place decimals and .010 (0.25 mm) for three place decimals. 3. The across flats dimension for hex drive socket shall be .094 inch (2.38 mm). 4. Tolerance for the hole spacing is .010 inch (0.25 mm) for mounting body style A and .005 inch (0.51 mm) for mounting body style C. FIGURE
19、1. Relaxed and expanded dimensions. Mounting. The mounting designators shall be as specified in AA59789. The mounting options available for this CID specification sheet are as follows: “S“ (tapped 2-56 holes), “R“ (rivet mount holes with counterbore and countersink), “T“ (tapped 0-80 holes), “P“ (.0
20、62 x .040 index pins), or “U“ (tapped metric M2 x 0.4 holes). See figure 1 for mounting hole spacing requirements. Card holders using mounting option “P“ and “R“ may be shipped unassembled. The center mounting wedge is not finished for card holders using mounting option “P“. Rivet mounting holes. Th
21、e holes used for rivet mounting shall be .066/.073 inch (1.68/1.85 mm) diameter, countersunk 100 degrees by .140 inch (3.56 mm) diameter through holes with a counterbore of .156 inch (3.96 mm) diameter with a depth of .165 inch (4.19 mm) for style C mounting bodies and .175 inch (4.45 mm) for style
22、A mounting bodies. Rivets. This card holder uses rivet type A as specified in AA59789 when rivet mounting is used. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AA59789/4A 4 Screw retention locknut (see figure 2). Card holders shall have a screw re
23、tention locknut intended to prevent unintentional disassembly of the card holder. The locknut shall be fabricated of a corrosion resistant material. FIGURE 2. Screw retaining self-locking nut (corrosion resistant) details. Visual lock indicator (see figure 3). Card holders shall have a visual indica
24、tor to show when the card holder is in its relaxed (unlocked) state. When the card holder is in the unlocked (relaxed) state, the end of the actuating screw shall display a red band on the side of the screw. When the actuating screw on the card holder has been tightened (assembly expanded) so that t
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