8 7 6 5 4 3 2 1 .325 EXPANDED MIN F 8.26 F VIEW OF ASSEMBLY EXPANDED .120 3.05 MAX SCREW ADVANCEMENT (.300 7.62 MAX WITH V OPTION) .125 .20 ASSY LENGTH 3.18 (SEE P/N CODE SHEET 2) 5.1 .225 E E 5.72 .260 .270 MAX 6.86 MAX 6.60 VIEW OF ASSEMBLY RELAXED COLD PLATE D D SERIES 426D WEDGLOCK REAR WEDGE PC BOARD RECOMMENDED GAP: .300 7.62 + PC BOARD THICKNESS C C INTERMEDIATE WEDGE ALIGNMENT SPRING CENTER WEDGE FEATURES DESIGNED FOR HEAVY SHOCK AND VIBRATION. UNIFORM CLAMPING FORCE AND HIGH THERMAL TRANSFER. NARROW WIDTH FOR MAXIMUM PCB COMPONENT AREA. B B LIGHT WEIGHT = ASSEMBLY LENGTH X .104 OZ 2.95 G OR 1.16 G/CM . SPECIAL LENGTHS, FINISH, AND OTHER DESIGN OPTIONS AVAILABLE UPON REQUEST. ALIGNMENT SPRING FRONT WEDGE MATERIAL WEDGES: ALUMINUM 6061-T6. DRIVE SCREW ALIGNMENT SPRINGS: 301 STAINLESS STEEL, PASSIVATED. ALL OTHER HARDWARE: 18-8 STAINLESS STEEL, PASSIVATED. PARTS ARE SHIPPED AS COMPLETE ASSEMBLY IN RELAXED STATE EXCEPT UNLESS OTHERWISE SPECIFIED: NAME DATE DIMENSIONS ARE IN INCHES RSB 6 FEB 2013 DRAWN FOR RIVET MOUNT OPTION. TOLERANCES: 63 CHECKED MACHINED SURFACES A A PROPRIETARY AND CONFIDENTIAL TITLE: ANGULAR 1 APPR. RECOMMENDED DRIVE SCREW TORQUE IS 6 IN-LBS 68 N-CM . TWO PLACE DECIMAL .02 THE INFORMATION CONTAINED IN THIS THIRD ANGLE PROJECTION THREE PLACE DECIMAL .005 WEDGELOCK DATASHEET DRAWING IS THE SOLE PROPERTY OF WAKEFIELD-VETTE. ANY REPRODUCTION IN INTERPRET GEOMETRIC .260 X .225 PROFILE PART OR AS A WHOLE WITHOUT THE TOLERANCING PER: ASME Y-14.5M WRITTEN PERMISSION OF WAKEFIELD-VETTE IS PROHIBITED. DO NOT SCALE DRAWING DWG. NO. SIZE REV MATERIAL 02/13 SEE PART DETAILS C 426D-DS CAGE CODE FINISH 3E7UB SEE FINISH TABLE SCALE: NONE SHEET 1 OF 2 8 7 6 5 4 3 2 18 7 6 5 4 3 2 1 .34 8.6 F F PART 1 EXAMPLE: 426D-480UMG 4.80 LENGTH, M2 MOUNT HOLES, METRIC M2.5 SOCKET HEAD, GOLD CHEM FILM PART 2 EXAMPLE: 426D-480UMG-CP SAME AS ABOVE PLUS CENTER MOUNTING HOLE AND LOCK PATCH OPTIONS LLL LENGTH TABLE .225 ASSY LENGTH H MTG C OPTION 5.72 LLL X X/2 480 - 749 .900 .450 .225 750 - 849 1.900 .950 5.72 E E PART DEFINITION PART NUMBER OPTIONS 850 & UP 2.900 1.450 PART NUMBER CODE (REQUIRED) (NOT REQUIRED) V OPTION OTHER LENGTHS AVAILABLE UPON VISUALLY CONFIRMS LOCKED IN PLACE REQUEST WHEN RED SCREW HEAD IS CONCEALED 426D - LLL H D F - C W N P V SERIES ADD V FOR OPTIONAL PART NO VISUAL INDICATOR .10 LENGTH ADD P FOR OPTIONAL 2.5 (EX. 480 = 4.80 ) LOCK PATCH H MOUNTING TABLE DASH NO DESCRIPTION OPTIONAL LOCK NUT .25 MIN D D A NO MOUNTING HOLES MOUNTING HOLE ADD A FOR MS21043-04 SILVER PLATED A286 SS (SEE MOUNTING TABLE) ADD N FOR MS21042-04 CADMIUM PLATED STEEL 6.4 MIN .068/.073 THRU R .156 X .20 P OPTION 100 X .140 NYLON PATCH PER MIL-F-18240 DRIVE SCREW T 0-80 UNF-2B THREADS PROVIDES ADDITIONAL RESISTANCE M FOR M2.5 HEX ADD W FOR OPTIONAL TO SHOCK AND VIBRATION S 2-56 UNC-2B THREADS S FOR 3/32 HEX LOCK AND FLAT WASHER U M2 X .4-6H THREADS M M2.5 X .45-6H THREADS FINISH ADD C FOR OPTIONAL (SEE FINISH TABLE) CENTER MOUNTING HOLE C C 3/32 OR M2.5 ACROSS FLATS A OR N OPTION PREVENTS DISASSEMBLY OF REAR WEDGE FROM SCREW W OPTION LOCK AND FLAT WASHERS .125 .20 F FINISH TABLE 3.18 5.1 DASH NO DESCRIPTION B B (ADD .06 IF W OPTION INCLUDED) (ADD .10 IF N OR A OPTION INCLUDED) A NONE C CHEM FILM PER MIL-DTL-5541, CLASS 1A, TYPE I (CLEAR) G CHEM FILM PER MIL-DTL-5541, CLASS 1A, TYPE I (GOLD) X/2 B BLACK ANODIZE PER MIL-A-8625, TYPE II, CLASS 2 ( C OPTION) H HARD BLACK ANODIZE PER MIL-A-8625, TYPE III, CLASS 2 X N NICKEL PLATE PER QQ-N-290, CLASS 1, GRADE G, BRIGHT (ASSY LENGTH L.LL - X) / 2 (SEE LENGTH TABLE) E ELECTROLESS NICKEL PER MIL-C-26074, CLASS 4, GRADE B, BRIGHT T TRIVALENT CHEM FILM PER MIL-DTL-5541, CLASS 1A, TYPE II (CLEAR), RoHS COMPLIANT ASSY LENGTH (L.LL) ALL THREADS ARE GAUGED PRIOR TO PLATING A A ADD .19 TO SCREW LENGTH BOTTOM VIEW IF V OPTION INCLUDED DWG. NO. SIZE REV 02/13 C 426D-DS SCALE: NONE SHEET 2 OF 2 8 7 6 5 4 3 2 1