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KFN624

K-FAST® SYSTEMS ENGINEERING COMMITTEE

K-FAST IS A REGISTERED TRADE MARK OF KAYNAR, A MICRODOT COMPANY

LICENSEES:

DEUTSCH FASTENER CORPORATION

VIO-SHAN / A DIVISION OF VSI CORP. SPS TECHNOLOGIES INCORPORATED

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➁ ➁ ➁ ➁ ➁ ➁ ➁ ➁

K.E.C.

K-FAST® ENGINEERING COMMITTEE

TITLE

PART NUMBER

800 SOUTH STATE COLLEGE BLVD.

NUT – 6 POINT, SELF-ALIGNING

KFN624 – (*)

FULLERTON, CALIFORNIA 92631

image

image

APPROVAL DATE

APPROVAL DATE

REDRAWN 03-24-83

REDRAWN 03-24-83

BLe

03-30-83

BLe

03-30-83

REVISION 1

REVISION 1

2

2

K-FAST PART NO

THREADS PER MIL-S-8879

A

B

C

MIN

D

H

MAX

L

MAX

M

MIN

P

REF

R

S

MIN

V

W

AXIAL TENSILE STRENGTH LBS MIN

LOCKING TORQUE IN. LB MAX

KFN624-

06

.1380-32UNJC-3B

.315

.305

.265

.260

.207

.155

.147

.175

.204

.062

.200

.174

.169

.060

.065

.055

.189

.181

1,200

5

08

.1640-32UNJC-3B

.335

.325

.292

.288

.242

.180

.173

.180

.224

.235

.174

.169

.060

.095

.085

.220

.212

1,650

8

3

.1900-32UNJF-3B

.385

.375

.322

.318

.277

.228

.224

.180

.234

.261

.195

.190

.070

.095

.085

.251

.243

1,900

9

4

.2500-28UNJF-3B

.515

.505

.422

.418

.348

.288

.284

.225

.289

.351

.255

.250

.090

.110

.100

.313

.305

.3,400

15

5

.3125-24UNJF-3B

.660

.650

.538

.532

.419

ÑÑ

.285

.369

.436

.380

.375

.160

.130

.120

.376

.367

5,500

30

6

.3750-24UNJF-3B

.710

.700

.649

.642

.491

ÑÑ

.325

.409

.534

.440

.435

.180

.142

.132

.439

.430

7,500

40

7

.4375-20UNJF-3B

.893

.883

.740

.730

.561

ÑÑ

.400

.489

.595

.501

.496

.220

.155

.145

.502

.492

.10,500

50

8

.5000-20UNJF-3B

1.005

.995

.860

.850

.631

ÑÑ

.460

.539

.663

.561

.556

.260

.175

165

.564

.553

13,500

75

K-FAST PART NO

THREADS PER MIL-S-8879

A

B

C

MIN

D

H

MAX

L

MAX

M

MIN

P

REF

R

S

MIN

V

W

AXIAL TENSILE STRENGTH LBS MIN

LOCKING TORQUE IN. LB MAX

KFN624-

06

.1380-32UNJC-3B

.315

.305

.265

.260

.207

.155

.147

.175

.204

.062

.200

.174

.169

.060

.065

.055

.189

.181

1,200

5

08

.1640-32UNJC-3B

.335

.325

.292

.288

.242

.180

.173

.180

.224

.235

.174

.169

.060

.095

.085

.220

.212

1,650

8

3

.1900-32UNJF-3B

.385

.375

.322

.318

.277

.228

.224

.180

.234

.261

.195

.190

.070

.095

.085

.251

.243

1,900

9

4

.2500-28UNJF-3B

.515

.505

.422

.418

.348

.288

.284

.225

.289

.351

.255

.250

.090

.110

.100

.313

.305

.3,400

15

5

.3125-24UNJF-3B

.660

.650

.538

.532

.419

ÑÑ

.285

.369

.436

.380

.375

.160

.130

.120

.376

.367

5,500

30

6

.3750-24UNJF-3B

.710

.700

.649

.642

.491

ÑÑ

.325

.409

.534

.440

.435

.180

.142

.132

.439

.430

7,500

40

7

.4375-20UNJF-3B

.893

.883

.740

.730

.561

ÑÑ

.400

.489

.595

.501

.496

.220

.155

.145

.502

.492

.10,500

50

8

.5000-20UNJF-3B

1.005

.995

.860

.850

.631

ÑÑ

.460

.539

.663

.561

.556

.260

.175

165

.564

.553

13,500

75

SHEET 1 OF 2

K-FAST® SYSTEMS ENGINEERING COMMITTEE

K-FAST IS A REGISTERED TRADE MARK OF KAYNAR, A MICRODOT COMPANY

LICENSEES:

DEUTSCH FASTENER CORPORATION

VIO-SHAN / A DIVISION OF VSI CORP. SPS TECHNOLOGIES INCORPORATED

MATERIAL: NUT — 7075 ALUMINUM ALLOY PER QQ-A-225/9.

WASHER — ALLOY STEEL 8740 PER MIL-S-6049, OR 4340 PER MIL-A-5000.

HEAT TREAT: NUT — T73 CONDITION PER MIL-H-6088

WASHER — Rc. 38 – 44 PER MIL-H-6875.

FINISH: NUT — ANODIZE PER MIL-A-8625, TYPE II, CLASS 1, NATURAL COLOR, PLUS

CETYL ALCOHOL LUBRICANT PER MIL-L-87132, TYPE I, GRADE A.

WASHER — CADMIUM PLATE PER FED. SPEC. QQ-P-416, TYPE II, CLASS 2, PLUS CETYL ALCOHOL LUBRICANT PER MIL-L-87132, TYPE I, GRADE A.

PERFORMANCE: MIL-N-25027, EXCEPT AS FOLLOWS:

  1. AXIAL TENSILE STRENGTH AND MAXIMUM LOCKING TORQUE AS TABULATED.

  2. REUSABILITY LIMITED TO 5 CYCLES.

MISALIGNMENT: UP TO 7° IN ANY DIRECTION FROM CENTERED POSITION.

PACKAGING: PARTS ARE NORMALLY SUPPLIED IN BULK PACKAGING.

ADD “5” AFTER DASH NUMBER FOR SPINDLE PACKAGED NUTS FOR USE WITH K-FAST AUTOMATIC TOOLS. EXAMPLE: KFN624 – 4S.

NOTES: 1. “C” AND “W” DIMENSIONS APPLY BEFORE FORMING SELF-LOCKING ACTION.

2. PARTS ARE SUPPLIED IN ASSEMBLE (BONDED) CONDITION.

TO ORDER INDIVIDUALLY, AD “N” FOR NUT ONLY OR ADD “B” FOR WASHER ONLY. EXAMPLE: KFN624N4 OR KFN624B4.

K.E.C.

K-FAST® ENGINEERING COMMITTEE

TITLE

PART NUMBER

800 SOUTH STATE COLLEGE BLVD.

NUT – 6 POINT, SELF-ALIGNING

KFN624 – (*)

FULLERTON, CALIFORNIA 92631

image

image

BLe 03-24-83

BLe 03-24-83

BLe

03-30-83

BLe

03-30-83

APPROVAL DATE BLe

03-08-83

APPROVAL DATE BLe

03-08-83

REVISION 1

REVISION 1

2

2

3702 / 3702 SHEET 2 OF 2

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