Coupling

Thread

Pipes

Hand Tight Stand –off

(Number of Threads)

Length

ln

Outside

Diameter

Pitch diameter at hand tight plan .in

Total length

In

Effective length

In

End of pipe to hand Tight plan .in

Number of threads

Per/inch

Outside diameter

in

NPS designator

A

NL

W

ET

L4

L2

L1

D

5

1-9/16

1.063

0.77843

0.7815

0.5337

0.320

14

0.840

½

5

1-5/8

1.313

0.98887

0.7935

0.5457

0.339

14

1.050

¾

5

2

1.576

1.23863

0.9845

0.6828

0.400

11-1/2

1.315

1

5

2-1/16

1.900

1.58338

1.0085

0.7068

0.420

11-1/2

1.660

1 -1/4

5-1/2

2-1/16

2.200

1.82234

1.0252

0.7235

0.420

11-1/2

1.900

1-1/2

5-1/2

2-1/8

2.750

2.29627

1.0582

0.7565

0.436

11-1/2

2.375

2

5-1/2

3-1/8

3.250

2.76216

1.5712

1.1375

0.682

8

2.875

2-1/2

5-1/2

3-1/4

4.000

3.38850

1.6337

1.200

0.766

8

3.500

3

5-1/2

3-3/8

4.625

3.88881

1.6837

1.2500

0.821

8

4.000

3-1/2

5

3-1/2

5.000

4.38713

1.7337

1.3000

0.844

8

4.500

4

2

4-5/8

6.296

5.44929

1.8400

1.4063

0.937

8

5.563

5

2

4-7/8

7.390

6.50597

1.9462

1.5125

0.958

8

6.625

6

2

5-1/4

9.625

8.50003

2.1462

1.7125

1.063

8

8.625

8

2

5-3/4

11.750

10.62094

2.3587

1.9250

1.210

8

10.750

10

2

6-1/8

14.000

12.61781

2.5587

2.1250

1.360

8

12.750

12