8 7 6 5 4 3 2 1 .325 EXPANDED MIN F 8.26 F VIEW OF ASSEMBLY EXPANDED .20 ASSY LENGTH 5.1 (SEE P/N CODE SHEET 2) .250 E E 6.35 .270 MAX .260 6.86 MAX 6.60 VIEW OF ASSEMBLY RELAXED COLD PLATE D D SERIES 426C WEDGLOCK ROLL PIN REAR WEDGE PC BOARD RECOMMENDED GAP: .300 7.62 + PC BOARD THICKNESS C C INTERMEDIATE WEDGE CENTER WEDGE FEATURES FRONT WEDGE DESIGNED FOR HEAVY SHOCK AND VIBRATION. UNIFORM CLAMPING FORCE AND HIGH THERMAL TRANSFER. NARROW WIDTH FOR MAXIMUM PCB COMPONENT AREA. B B LOW PROFILE DESIGN ALLOWS FOR DECREASED SLOT PITCH. CAPTIVATED REAR WEDGE. LIGHT WEIGHT = ASSEMBLY LENGTH X .085 OZ 2.41 G OR .95 G/CM . FLAT WASHER SPECIAL LENGTHS, FINISH, AND OTHER DESIGN OPTIONS AVAILABLE UPON REQUEST. LOCK WASHER MATERIAL MOUNTING BAR AND WEDGES: ALUMINUM 6063-T6. ALL OTHER HARDWARE: 18-8 STAINLESS STEEL, PASSIVATED. DRIVE SCREW UNLESS OTHERWISE SPECIFIED: NAME DATE DIMENSIONS ARE IN INCHES RSB 5 FEB 2013 DRAWN PARTS ARE SHIPPED AS COMPLETE ASSEMBLY IN RELAXED STATE EXCEPT TOLERANCES: 63 CHECKED FOR RIVET MOUNT OPTION. MACHINED SURFACES A A PROPRIETARY AND CONFIDENTIAL TITLE: ANGULAR 1 APPR. TWO PLACE DECIMAL .02 THE INFORMATION CONTAINED IN THIS THIRD ANGLE PROJECTION THREE PLACE DECIMAL .005 WEDGELOCK DATASHEET DRAWING IS THE SOLE PROPERTY OF RECOMMENDED DRIVE SCREW TORQUE IS 6 IN-LBS 68 N-CM . WAKEFIELD-VETTE. ANY REPRODUCTION IN INTERPRET GEOMETRIC .260 X .250 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 426C-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 .33 8.4 F F LLL LENGTH TABLE PART 1 EXAMPLE: 426C-480UMG ASSY LENGTH H MTG C OPTION 4.80 LENGTH, M2 MOUNT HOLES, METRIC M2.5 SOCKET HEAD, GOLD CHEM FILM LLL X X/2 480 2.900 1.450 PART 2 EXAMPLE: 426C-480UMG-CP SAME AS ABOVE PLUS CENTER MOUNTING HOLE AND LOCK PATCH OPTIONS 530 3.400 1.700 580 3.900 1.950 .225 630 4.400 2.200 5.72 680 4.900 2.450 .225 730 5.400 2.700 5.72 PART DEFINITION PART NUMBER OPTIONS 780 5.900 2.950 E E (REQUIRED) PART NUMBER CODE (NOT REQUIRED) OTHER LENGTHS AVAILABLE UPON V OPTION REQUEST VISUALLY CONFIRMS LOCKED IN PLACE WHEN RED SCREW HEAD IS CONCEALED 426C - LLL H D F - C K P V SERIES ADD V FOR OPTIONAL PART NO VISUAL INDICATOR .10 LENGTH ADD P FOR OPTIONAL (EX. 480 = 4.80 ) LOCK PATCH 2.5 H MOUNTING TABLE D DASH NO DESCRIPTION D MOUNTING HOLE ADD K FOR OPTIONAL .25 MIN (SEE MOUNTING TABLE) CAPTIVE SCREW FEATURE A NO MOUNTING HOLES 6.4 MIN .068/.073 THRU R 100 X .213 P OPTION DRIVE SCREW T 0-80 UNF-2B THREADS NYLON PATCH PER MIL-F-18240 M FOR M2.5 HEX ADD C FOR OPTIONAL PROVIDES ADDITIONAL RESISTANCE S FOR 3/32 HEX CENTER MOUNTING HOLE S 2-56 UNC-2B THREADS TO SHOCK AND VIBRATION U M2 X .4-6H THREADS M M2.5 X .45-6H THREADS FINISH (SEE FINISH TABLE) C C 3/32 OR M2.5 K OPTION ACROSS FLATS CAPTIVATES SCREW BY FREE-SPINNING WHEN WEDGELOCK IS IN RELAXED POSITION F FINISH TABLE DASH NO DESCRIPTION B B A NONE .20 5.1 C CHEM FILM PER MIL-DTL-5541, CLASS 1A, TYPE I (CLEAR) G CHEM FILM PER MIL-DTL-5541, CLASS 1A, TYPE I (GOLD) B BLACK ANODIZE PER MIL-A-8625, TYPE II, CLASS 2 H HARD BLACK ANODIZE PER MIL-A-8625, TYPE III, CLASS 2 X/2 N NICKEL PLATE PER QQ-N-290, CLASS 1, GRADE G, BRIGHT ( C OPTION) E ELECTROLESS NICKEL PER MIL-C-26074, CLASS 4, GRADE B, BRIGHT .80 X 20.3 T TRIVALENT CHEM FILM PER MIL-DTL-5541, CLASS 1A, TYPE II (CLEAR), RoHS COMPLIANT ALL THREADS ARE GAUGED PRIOR TO PLATING ASSY LENGTH (L.LL) A A BOTTOM VIEW DWG. NO. SIZE REV 02/13 C 426C-DS SCALE: NONE SHEET 2 OF 2 8 7 6 5 4 3 2 1