Count On Performance Sealing

 

Gland Dimensions Per Fractional Inch Basis for the following families of Piston, Shaft, and Other Cylindrical Duraseal Performance Seals

FF

FFH

FFI

FFIH

FFE

FFEH

FFD

FFDH

CF

CFH

 

 

 

 

 

 

HF

HFH

HFI

HFIH

HFE

HFEH

HFD

HFDH

Note: The standard gland lengths ('G' dimensions) are insufficient for the heavy heel (suffix H) styles. See table below.


Size Dash Number

Nominal
Cross Section

G*
Gland Length

G**
Gland Length

R
Radius

E
Diametric
Clearance(Max.)

-006
thru
-029

1/16†

.094/.104

.149/.159

..005/.015

.004

-106
thru -149

3/32

.141/.151

.183/.193

.005/.015

.004

-202
thru
-273

1/8

.188/.198

.235/.245

.005/.025

.004

-316
thru
-381

3/16

.281/.291

.334/.344

.005/.030

.006

-402
thru
-469

1/4

.375/.385

.475/.485

.005/.030

.006

* All seals referenced above without suffix H
** All seals referenced above with suffix H

1/16 CROSS SECTION SEALS ARE RECOMMENDED FOR LIMITED SPACE APPLICATIONS ONLY.  IF SPACE PERMITS, USE 3/32" CROSS SECTION OR LARGER.

SEPARABLE GLAND DESIGN OR REDUCED GLAND-WALL DESIGN SHOULD BE USED WHENEVER POSSIBLE.

1/8" NOMINAL
CROSS SECTION

      

3/16" NOMINAL
CROSS SECTION

Size
Dash
Number

 

A
+.000
-.002

B
+.002
-.000

-202

.250

.500

-203

.312

.562

-204

.375

.625

-205

.437

.687

-206

.500

.750

-207

.562

.812

-208

.625

.875

-209

.687

.937

-210

.750

1.000

-211

.812

1.062

-212

.875

1.125

-213

.937

1.187

-214

1.000

1.250

-215

1.062

1.312

-216

1.125

1.375

-217

1.187

1.437

-218

1.250

1.500

-219

1.312

1.562

-220

1.375

1.625

-221

1.437

1.687

-222

1.500

1.750

-223

1.625

1.875

-224

1.750

2.000

-225

1.875

2.125

-226

2.000

2.250

-227

2.125

2.375

-228

2.250

2.500

-229

2.375

2.625

-230

2.500

2.750

-231

2.625

2.875

-232

2.750

3.000

-233

2.875

3.125

-234

3.000

3.250

-235

3.125

3.375

-236

3.250

3.500

-237

3.375

3.625

-238

3.500

3.750

-239

3.625

3.875

-240

3.750

4.000

-241

3.875

4.125

-242

4.000

4.250

-243

4.125

4.375

-244

4.250

4.500

-245

4.375

4.625

-246

4.500

4.750

-247

4.625

4.875

-248

4.750

5.000

-249

4.875

5.125

-250

5.000

5.250

-251

5.125

5.375

-252

5.250

5.500

-253

5.375

5.625

-254

5.500

5.750

-255

5.625

5.875

-256

5.750

6.000

-257

5.875

6.125

-258

6.000

6.250

-259

6.250

6.500

-260

6.500

6.750

-261

6.750

7.000

-262

7.000

7.250

-263

7.250

7.500

-264

7.500

7.750

-265

7.750

8.000

-266

8.000

8.250

-267

8.250

8.500

-268

8.500

8.750

-269

8.750

9.000

-270

9.000

9.250

-271

9.250

9.500

-272

9.500

9.750

-273

9.750

10.000

 

Size
Dash
Number

 

A
+.000
-.002

B
+.002
-.000

-316

.875

1.250

-317

.937

1.312

-318

1.000

1.375

-319

1.062

1.437

-320

1.125

1.500

-321

1.187

1.562

-322

1.250

1.625

-323

1.312

1.687

-324

1.375

1.750

-325

1.500

1.875

-326

1.625

2.000

-327

1.750

2.125

-328

1.875

2.250

-329

2.000

2.375

-330

2.125

2.500

-331

2.250

2.625

-332

2.375

2.750

-333

2.500

2.875

-334

2.625

3.000

-335

2.750

3.125

-336

2.875

3.250

-337

3.000

3.375

-338

3.125

3.500

-339

3.250

3.625

-340

3.375

3.750

-341

3.500

3.875

-342

3.625

4.000

-343

3.750

4.125

-344

3.875

4.250

-345

4.000

4.375

-346

4.125

4.500

-347

4.250

4.625

-348

4.375

4.750

-349

4.500

4.875

-350

4.625

5.000

-351

4.750

5.125

-352

4.875

5.250

-353

5.000

5.375

-354

5.125

5.500

-355

5.250

5.625

-356

5.375

5.750

-357