NPT Stainless Steel Pipe Nipple

Pipe O.D.

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Space

1/8”

.405

3/4

1 1/2

2

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

1/4”

.540

7/8

1 1/2

2

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

3/8”

.675

1

1 1/2

2

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

1/2”

.840

1 1/8

1 1/2

2

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

3/4”

1.050

1 3/8

1 1/2

2

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

1”

1.315

1 1/2

2

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

11/4”

1.660

1 5/8

2

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

11/2”

1.900

1 3/4

2

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

2”

2.375

2

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

21/2”

2.875

2 1/2

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

3”

3.500

2 5/8

3

3 1/2

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

4”

4.500

2 7/8

4

4 1/4

5

5 1/2

6

7

8

9

10

11

12

5”

5.563

3

4 1/4

5

5 1/2

6

7

8

9

10

11

12

6”

6.625

3 1/8

4 1/4

5

5 1/2

6

7

8

9

10

11

12

8”

8.625

3 1/2

4 1/4

5

5 1/2

6

7

8

9

10

11

12