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SW& THD Unions 

 Socket Welding Unions - MSS SP 83

NPS Pipe End Socket  Bore Socket Wall Water Way Bore Laying Length Male Flange Nut Threads Per 25.4mm Bearing Depth of Socket Length Assem.Nom. Clear Assem.Nut
Min. A B Min. C D E Min. F Min. G Max. H Min. J Min. K L N
1/8 21.8 10.67-11.18 3.18 6.07-7.59 19.1-22.4 3.18 3.18 16 1.24 9.7 41.4 50.8
1/4 21.8 14.1-14.61 3.3 8.48-10.01 19.1-22.4 3.18 3.18 16 1.24 9.7 41.4 50.8
3/8 25.9 17.53-18.03 3.51 11.76-13.28 20.6-26.9 3.43 3.43 14 1.37 9.7 46 55.9
 1/2 31.2 21.73-22.23 4.09 15.04-16.56 20.6-26.9 3.68 3.68 14 1.5 9.7 49 58.4
 3/4 37.1 27.05-27.56 4.27 20.17-21.69 25.4-31.8 4.06 4.06 11 1.68 12.7 56.9 66
1 45.5 33.78-34.29 4.98 25.88-27.41 26.2-34.3 4.57 4.45 11 1.85 12.7 62 78.7
1 ¼ 54.9 42.55-43.05 5.28 34.29-35.81 32.5-40.6 5.33 5.21 11 2.13 12.7 71.1 94
1 ½ 61.5 48.64-49.15 5.54 40.13-41.66 34-42.2 5.84 5.59 10 2.31 12.7 76.5 111.8
2 75.2 61.11-61.62 6.05 51.74-53.26 37.3-45.5 6.6 6.35 10 2.69 15.7 86.1 132.1
2 ½ 91.7 73.81-74.45 7.67 61.19-64.24 52.1-61.7 7.49 7.11 8 3.07 15.7 102.4 149.9
3 109.2 89.79-90.42 8.31 76.4-79.45 53.6-63.8 8.26 8 8 3.53 15.7 109 175.3

 

 

(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.

 

 

 

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. 


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