Dimensions of Tapered Nipples(3TPI)  
Diameter Nipple (mm) Socket ( mm) Pitch ( mm)
inch  mm D L d2 l d1 H
9 225 139.70 0
-0.50 		203.20 0
-1		 90.73 0
-5		 <10 131.27 +0.50
0 		107.60 +7
0
8.47
10 250 155.57 220.00 103.80 147.14 116.00
12 300 177.16 270.90 116.90 168.73 141.50
14 350 215.90 304.80

150.00

 207.47 158.40
16 400 215.90 304.80 150.00 207.47 158.40
400 241.30 338.70 169.80 232.87 175.30
18 450 241.30 338.70 169.80 232.87 175.30
450 273.05 355.60 198.70 264.62 183.80
20 500 273.05 355.60 198.70 264.62 183.80
500 298.45 372.60 221.30 290.02 192.20

  Dimensions of Tapered Nipples(4TPI)  
Diameter Nipple (mm) Socket (mm) Pitch (mm)
inch  mm D L d2 l d1 H  
3 75 46.04    0
-0.50 		76.20 0
-1

20.80

  0
-5		 <7 39.72 +0.50
0 		44.10 +7
0
6.35
4 100 69.85 101.60 40.30 63.53 56.80
5
130 79.38 127.00 45.60 73.06 69.50
6 150 92.08 139.70 56.20 85.76 75.90
8 200 122.24 177.80 80.00 115.92 94.90
9 225 139.70 177.80 97.46 133.38 94.90
10 250 152.40 190.50 108.00 146.08 101.30
12 300 177.80 215.90 129.20 171.48 114.00
14 350 203.20 254.00 148.20 196.88 133.00
16 400 222.25 304.80 158.80 215.93 158.40
400 222.25 355.60 150.00 215.93 183.80
18 450 241.30 304.80 177.90 234.98 158.40
450 241.30 355.60 169.42 234.98 183.80
20 500 269.88 355.60 198.00 263.56 183.80
500 269.88 457.20 181.08 263.56 234.60

                      

                      

                      

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