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Threaded Fittings Dimensions ASME B16.11

Ample Alloys

Threaded Fittings Dimensions:

Dimensions Threaded Elbows 90°/45° ASME B16.11

Dimensions Threaded Elbows 90°/45° ASME B16.11

Class 2000:

NPS Min Thread Length Outside Dia Min WT Center to End
B J D G 90°
A		 45°
C
1/2 10.9 13.6 33 3.18 28 22
3/4 12.7 13.9 38 3.18 33 25
1 14.7 17.3 46 3.68 38 28
1.1/4 17 18 56 3.89 44 33
1.1/2 17.8 18.4 62 4.01 51 35
2 19 19.2 75 4.27 60 43
2.1/2 23.6 28.9 92 5.61 76 52
3 25.9 30.5 109 5.99 86 64
4 27.7 33 146 6.55 106 79

Class 3000:

NPS Min Thread Length Outside Dia Min WT Center to End
B J D G 90°
A		 45°
C
1/2 10.9 13.6 38 4.09 33 25
3/4 12.7 13.9 46 4.32 38 28
1 14.7 17.3 56 4.98 44 33
1.1/4 17 18 62 5.28 51 35
1.1/2 17.8 18.4 75 5.56 60 43
2 19 19.2 84 7.14 64 44
2.1/2 23.6 28.9 102 7.65 83 52
3 25.9 30.5 121 8.84 95 64
4 27.7 33 152 11.18 114 79

Class 6000:

NPS Min Thread Length Outside Dia Min WT Center to End
B J D G 90°
A		 45°
C
1/2 10.9 13.6 46 8.15 38 28
3/4 12.7 13.9 56 8.53 44 33
1 14.7 17.3 62 9.93 51 35
1.1/4 17 18 75 10.59 60 43
1.1/2 17.8 18.4 84 11.07 64 44
2 19 19.2 102 12.09 83 52
2.1/2 23.6 28.9 121 15.29 95 64
3 25.9 30.5 146 16.64 106 79
4 27.7 33 152 18.67 114 79

General notes..

  • Dimensions are in millimeters unless otherwise indicated.
  • Dimension (B) is the minimum length of the perfect thread.
  • The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.

Dimensions Threaded Tees & Crosses ASME B16.11:

Class 2000:

NPS Min Length of Thread Outside Dia of Band
D		 Center to End
A		 Min
WT
B J
1/2 10.9 13.6 33 28 3.18
3/4 12.7 13.9 38 33 3.18
1 14.7 17.3 46 38 3.68
1.1/4 17 18 56 44 3.89
1.1/2 17.8 18.4 62 51 4.01
2 19 19.2 75 60 4.27
2.1/2 23.6 28.9 92 76 5.61
3 25.9 30.5 109 86 5.99
4 27.7 33 146 106 6.55

Class 3000:

NPS Min Length of Thread Outside Dia of Band
D		 Center to End
A		 Min
WT
B J
1/2 10.9 13.6 38 33 4.09
3/4 12.7 13.9 46 38 4.32
1 14.7 17.3 56 44 4.98
1.1/4 17 18 62 51 5.28
1.1/2 17.8 18.4 75 60 5.56
2 19 19.2 84 64 7.14
2.1/2 23.6 28.9 102 83 7.65
3 25.9 30.5 121 95 8.84
4 27.7 33 152 114 11.18

Class 6000:

NPS Min Length of Thread Outside Dia of Band
D		 Center to End
A		 Min
WT
B J
1/2 10.9 13.6 46 38 8.15
3/4 12.7 13.9 56 44 8.53
1 14.7 17.3 62 51 9.93
1.1/4 17 18 75 60 10.59
1.1/2 17.8 18.4 84 64 11.07
2 19 19.2 102 83 12.09
2.1/2 23.6 28.9 121 95 15.29
3 25.9 30.5 146 106 16.64
4 27.7 33 152 114 18.67

General notes..

  • Dimensions are in millimeters unless otherwise indicated.
  • Dimension B is the minimum length of the perfect thread.
    The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.

Dimensions Threaded Street Elbows ASME B16.11:

Class 3000:

NPS Center to Female End Center to Male End Outside Dia Min WT Min WT
A C D G1 G2
1/2 28 41 38 4.09 4.16
3/4 35 48 44 4.32 4.88
1 44 57 51 4.98 5.56
1.1/4 51 66 62 5.28 5.56
1.1/2 54 71 70 5.56 6.25
2 64 84 84 7.14 7.64
NPS Min Length Internal Thread Min Length Male Thread
B J1 J2
1/2 10.9 13.6 14
3/4 12.7 13.9 16
1 14.7 17.3 19
1.1/4 17 18 21
1.1/2 17.8 18.4 21
2 19 19.2 22

Class 6000:

NPS Center to Female End Center to Male End Outside Dia Min WT Min WT
A C D G1 G2
1/2 35 48 44 8.15 6.53
3/4 44 57 51 8.53 6.86
1 51 66 62 9.93 7.95
1.1/4 54 71 70 10.59 8.48
1.1/2 64 84 84 11.07 8.89
2 83 105 102 12.09 9.70
NPS Min Length Internal Thread Min Length Male Thread
B J1 J2
1/2 10.9 13.6 14
3/4 12.7 13.9 16
1 14.7 17.3 19
1.1/4 17 18 21
1.1/2 17.8 18.4 21
2 19 19.2 22

General notes..

  • Dimensions are in millimeters unless otherwise indicated.
  • Dimension G2 = Wall thickness before threading.
  • Dimension B is the minimum length of the perfect thread.
    The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.

Dimensions Threaded Full and Half Couplings ASME B16.11

Class 3000:

NPS Length Outside Dia Min Thread Length
A D B J
1/2 48 28 10.9 13.6
3/4 51 35 12.7 13.9
1 60 44 14.7 17.3
1.1/4 67 57 17 18
1.1/2 79 64 17.8 18.4
2 86 76 19 19.2
2.1/2 92 92 23.6 28.9
3 108 108 25.9 30.5
4 121 140 27.7 33

Class 6000:

NPS Length Outside Dia Min Thread Length
A D B J
1/2 48 38 10.9 13.6
3/4 51 44 12.7 13.9
1 60 57 14.7 17.3
1.1/4 67 64 17 18
1.1/2 79 76 17.8 18.4
2 86 92 19 19.2
2.1/2 92 108 23.6 28.9
3 108 127 25.9 30.5
4 121 159 27.7 33

General notes..

  • Dimensions are in millimeters unless otherwise indicated.
  • Dimension (B) is the minimum length of the perfect thread.
    The length of a useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.

Dimensions Hex Head Bushings ASME B16.11

NPS Min Length
E		 Min Hex Height
C		 Nominal
F
1/2 14 5 22
3/4 16 6 27
1 19 6 35
1.1/4 21 7 44.5
1.1/2 21 8 51
2 22 9 63.5
2.1/2 27 10 76
3 28 10 89
4 32 13 117.5

General notes..

  • Dimensions are in millimeters unless otherwise indicated.
  • Cautionary Note Regarding Hex Bushings..
    Hex head bushings of one-size reduction should not be used in services where they might be subject to harmful loads and forces other than internal pressures.

Dimensions Threaded End Caps ASME B16.11

Class 3000:

NPS Length Outside Dia Min WT Min Thread Length
A D G B J
1/2 32 28 6.4 10.9 13.6
3/4 37 35. 6.4 12.7 13.9
1 41 44 9.7 14.7 17.3
1.1/4 44 57 9.7 17 18
1.1/2 44 64 11.2 17.8 18.4
2 48 76 12.7 19 19.2
2.1/2 60 92 15.7 23.6 28.9
3 65 108 19 25.9 30.5
4 68 140 22.4 27.7 33

Class 6000:

NPS Length Outside Dia Min WT Min Thread Length
A D G B J
1/2 33 38 7.9 10.9 13.6
3/4 38 44 7.9 12.7 13.9
1 43 57 11.2 14.7 17.3
1.1/4 46 64 11.2 17 18
1.1/2 48 76 12.7 17.8 18.4
2 51 92 15.7 19 19.2
2.1/2 64 108 19 23.6 28.9
3 68 127 22.4 25.9 30.5
4 75 159 28.4 27.7 33

General notes..

  • Dimensions are in millimeters unless otherwise indicated.
  • Dimension (B) is the minimum length of the perfect thread.
    The length of a useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.

Forged Fittings Available Materials and Grades

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