(1) Dimensions are in millimeters. (2) H is the number of threads per inch with the min. of 4 tighting turns, and the female and male thread herein shall be machined per ASME B1.1 2A/2B.
Threaded Unions - MSS SP 83
NPS
Pipe End
Wall
Water Way Bore
Male Flange
Nut
Threads Per 25.4mm
Bearing
Length Assem.Nom.
Clear Assem.Nut
Min. A
Min. C
D
Min. F
Min. G
Max. H
Min. J
L
N
1/8
14.7
2.41
8.43-6.43
3.18
3.18
16
1.24
41.4
50.8
1/4
19
3.02
11.13-9.45
3.18
3.18
16
1.24
41.4
50.8
3/8
22.9
3.2
14.27-13.51
3.43
3.43
14
1.37
46
55.9
1/2
27.7
3.73
17.86-17.07
3.68
3.68
14
1.5
49
58.4
3/4
33.5
3.91
23.01-21.39
4.06
4.06
11
1.68
56.9
66
1
41.4
4.55
28.98-27.74
4.57
4.45
11
1.85
62
78.7
1 ¼
50.5
4.85
37.69-35.36
5.33
5.21
11
2.13
71.1
94
1 ½
57.2
5.08
43.54-41.20
5.84
5.59
10
2.31
76.5
111.8
2
70.1
5.54
55.58-52.12
6.6
6.35
10
2.69
86.1
132.1
2 ½
85.3
7.01
66.27-64.31
7.49
7.11
8
3.07
102.4
149.9
3
102.4
7.62
88.25-77.27
8.26
8
8
3.53
109
175.3
(1) Dimensions are in millimeters. (2) H is the number of threads per inch with the min. of 4 tighting turns, and the female and male thread herein shall be machined per ASME B1.1 2A/2B.