Code No.

Nominal Size

Class

Threads

𝐋

𝑙

𝑙1

𝑙2

𝑑

𝑘

𝑙k

Flutes

TNOT01L

NPT 1/16 - 27

ANSI G

NPT

54

17

12

-

8

6

9

4

TNPT02L

NPT 1/8 - 27

55

19

12.05

-

8

6

9

4

TNPT04O

NPT 1/4 - 18

62

28

17.45

-

11

9

12

4

TNPT06O

NPT 3/8 - 18

65

28

17.65

-

14

11

14

4

TNPT08Q

NPT 1/2 - 14

80

35

22.85

-

18

14

17

4

TNPT12Q

NPT 3/4 - 14

85

35

22.95

-

23

17

20

4

TNPT16T

NPT 1- 11 1/2

95

45

27.4

-

26

21

24

5

TNPT20T

PT 1 1/4 - 11 1/2

105

45

28.1

-

32

26

30

5

TNPT24T

NPT 1 1/2 - 11 1/2

110

45

28.4

-

38

29

32

6

TNPT32T

PT 2 - 11 1/2

120

50

28

-

46

35

38

6

TNPT40X

PT 2 1/2 - 8

145

65

40.8

-

55

41

44

8

TNPT48X

PT 3 - 8

155

65

42.95

-

65

50

52

8