Dimensions & Tolerances in Inches ASME B16.5

Dimensions in Inches Weld Neck Flanges & Stud Bolts according to ASME B16.5
Class 150 NPS Groove No. Pitch Dia P Depth E Note (1) Width F Radius at bottom R
R11
34.14
5.54
7.14
0.8
R12
39.67
6.35
8.74
0.8
R13
42.88
6.35
8.74
0.8
R14
44.45
6.35
8.74
0.8
1
R15
47.63
6.35
8.74
0.8
R16
50.8
6.35
8.74
0.8
R17
57.15
6.35
8.74
0.8
R18
60.33
6.35
8.74
0.8
R19
65.07
6.35
8.74
0.8
R20
68.27
6.35
8.74
0.8
R21
72.23
7.92
11.91
0.8
2
R22
82.55
6.35
8.74
0.8
R23
82.55
7.92
11.91
0.8
R24
95.25
7.92
11.91
0.8
R25
101.6
6.35
8.74
0.8
R26
101.6
7.92
11.91
0.8
R27
107.95
7.92
11.91
0.8
R28
111.13
9.53
13.49
1.5
3
R29
114.3
6.35
8.74
0.8
R30
117.48
7.92
11.91
0.8
R31
123.83
7.92
11.91
0.8
R32
127
9.53
13.49
1.5
R33
131.78
6.35
8.74
0.8
R34
131.78
7.92
11.91
0.8
R35
136.53
7.92
11.91
0.8
4
R36
149.23
6.35
8.74
0.8
R37
149.23
7.92
11.91
0.8
R38
157.18
11.13
16.66
1.5
R39
161.93
7.92
11.91
0.8
5
R40
171.45
6.35
8.74
0.8
R41
180.98
7.92
11.91
0.8
R42
190.5
12.7
19.84
1.5
6
R43
193.68
6.35
8.74
0.8
R44
193.68
7.92
11.91
0.8
Class 150 NPS
Groove No.
Pitch Dia P
Depth E Note (1)
Width F
Radius at bottom R
R45
211.12
7.92
11.91
0.8
R46
211.14
9.53
13.49
1.5
R47
228.6
12.7
19.84
1.5
8
R48
247.65
6.35
8.74
0.8
R49
269.88
7.92
11.91
0.8
R50
269.88
11.13
16.66
1.5
R51
279.4
14.27
23.01
1.5
10
R52
304.8
6.35
8.74
0.8
R53
323.85
7.92
11.91
0.8
R54
323.85
11.13
16.66
1.5
R55
342.9
17.48
30.18
2.4
12
R56
381
6.35
8.74
0.8
R57
381
7.92
11.91
0.8
R58
381
14.27
23.01
1.5
14
R59
396.88
6.35
8.74
0.8
R60
406.4
17.48
33.32
2.4
R61
419.1
7.92
11.91
0.8
R62
419.1
11.13
16.66
1.5
R63
419.1
15.88
26.97
2.4
16
R64
454.03
6.35
8.74
0.8
R65
469.9
7.92
11.91
0.8
R66
469.9
11.13
16.66
1.5
R67
469.9
17.48
30.18
2.4
18
R68
517.53
6.35
8.74
0.8
R69
533.4
7.92
11.91
0.8
R70
533.4
12.7
19.84
1.5
R71
533.4
17.48
30.18
2.4
20
R72
558.8
6.35
8.74
0.8
R73
584.2
9.53
13.49
1.5
R74
584.2
12.7
19.84
1.5
R75
584.2
17.48
33.32
2.4
24
R76
673.1
6.35
8.74
0.8
R77
692.15
11.13
16.66
1.5
R78
692.15
15.88
26.97
2.4
R79
692.15
20.62
36.53
2.4
Class 150 NPS
Groove No.
Pitch Dia P
Depth E Note (1)
Width F
Radius at bottom R

General Notes:

Diameter of Raised Portion, K

Class 150 NPS Class 300 NPS Class 400 NPS Class 600 NPS Class 900 NPS Class 1500 NPS Class 2500 NPS
51
1/2
51
1/2
60.5
1/2
63.5
3/4
63.5
3/4
65
1/2
66.5
3/4
63.5
1
70
1
70
1
71.5
1
73
3/4
73
79.5
79.5
81
82.5
1
82.5
90.5
90.5
92
102
102
2
108
2
108
2
114
124
2
121
127
127
133
2
137
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
149
133
3
146
3
146
3
156
3
168
3
154
159
159
168
3
171
4
175
4
175
4
175
4
181
4
203
4
194
4
194
5
210
5
210
5
210
5
216
5
241
5
219
6
229
5
241
6
241
6
241
6
241
6
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
248
6
279
6
273
8
302
8
302
8
302
8
308
8
318
8
340
8
330
10
356
10
356
10
356
10
362
10
371
10
425
10
406
12
413
12
413
12
413
12
419
12
438
12
425
14
495
12
457
14
457
14
457
14
467
14
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
489
14
483
16
508
16
508
16
508
16
524
16
546
16
546
18
575
18
575
18
575
18
594
18
613
18
597
20
635
20
635
20
635
20
648
20
673
20
711
24
749
24
749
24
749
24
772
24
794
24
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
Diameter of Raised Portion, K

Approximate Distance Between Flanges, X

Class 150 NPS Class 300 NPS Class 400 NPS Class 600 NPS Class 900 NPS Class 1500 NPS Class 2500 NPS
3
1/2
3
1/2
4
1/2
4
3/4
4
3/4
4
1/2
4
3/4
4
1
4
1
4
1
4
1
4
3/4
4
4
4
4
4
1
4
4
4
4
3
4
2
6
2
5
2
3
3
2
4
6
5
3
2
3
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
3
4
3
6
3
5
3
4
3
3
3
4
6
5
3
3
4
4
6
4
6
4
5
4
4
4
4
4
3
4
4
5
6
5
6
5
5
5
4
5
4
5
4
6
3
5
6
6
6
6
5
6
4
6
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
3
6
4
6
4
8
6
8
6
8
5
8
4
8
4
8
5
8
4
10
6
10
6
10
5
10
4
10
4
10
6
10
4
12
6
12
6
12
5
12
4
12
5
12
3
14
8
12
6
14
6
14
5
14
4
14
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
6
14
3
16
6
16
6
16
5
16
4
16
8
16
3
18
6
18
6
18
5
18
5
18
8
18
3
20
6
20
6
20
5
20
5
20
10
20
3
24
6
24
6
24
6
24
6
24
11
24
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
Approximate Distance Between Flanges, X
Class 300 NPS Groove No. Pitch Dia P Depth E Note (1) Width F Radius at bottom R
1/2
R11
34.14
5.54
7.14
0.8
R12
39.67
6.35
8.74
0.8
3/4
R13
42.88
6.35
8.74
0.8
R14
44.45
6.35
8.74
0.8
R15
47.63
6.35
8.74
0.8
1
R16
50.8
6.35
8.74
0.8
R17
57.15
6.35
8.74
0.8
R18
60.33
6.35
8.74
0.8
R19
65.07
6.35
8.74
0.8
R20
68.27
6.35
8.74
0.8
R21
72.23
7.92
11.91
0.8
R22
82.55
6.35
8.74
0.8
2
R23
82.55
7.92
11.91
0.8
R24
95.25
7.92
11.91
0.8
R25
101.6
6.35
8.74
0.8
R26
101.6
7.92
11.91
0.8
R27
107.95
7.92
11.91
0.8
R28
111.13
9.53
13.49
1.5
R29
114.3
6.35
8.74
0.8
Note (2)
R30
117.48
7.92
11.91
0.8
3 Note (2)
R31
123.83
7.92
11.91
0.8
R32
127
9.53
13.49
1.5
R33
131.78
6.35
8.74
0.8
R34
131.78
7.92
11.91
0.8
R35
136.53
7.92
11.91
0.8
R36
149.23
6.35
8.74
0.8
4
R37
149.23
7.92
11.91
0.8
R38
157.18
11.13
16.66
1.5
R39
161.93
7.92
11.91
0.8
R40
171.45
6.35
8.74
0.8
5
R41
180.98
7.92
11.91
0.8
R42
190.5
12.7
19.84
1.5
R43
193.68
6.35
8.74
0.8
R44
193.68
7.92
11.91
0.8
Class 300 NPS
Groove No.
Pitch Dia P
Depth E Note (1)
Width F
Radius at bottom R
6
R45
211.12
7.92
11.91
0.8
R46
211.14
9.53
13.49
1.5
R47
228.6
12.7
19.84
1.5
R48
247.65
6.35
8.74
0.8
8
R49
269.88
7.92
11.91
0.8
R50
269.88
11.13
16.66
1.5
R51
279.4
14.27
23.01
1.5
R52
304.8
6.35
8.74
0.8
10
R53
323.85
7.92
11.91
0.8
R54
323.85
11.13
16.66
1.5
R55
342.9
17.48
30.18
2.4
R56
381
6.35
8.74
0.8
12
R57
381
7.92
11.91
0.8
R58
381
14.27
23.01
1.5
R59
396.88
6.35
8.74
0.8
R60
406.4
17.48
33.32
2.4
14
R61
419.1
7.92
11.91
0.8
R62
419.1
11.13
16.66
1.5
R63
419.1
15.88
26.97
2.4
R64
454.03
6.35
8.74
0.8
16
R65
469.9
7.92
11.91
0.8
R66
469.9
11.13
16.66
1.5
R67
469.9
17.48
30.18
2.4
R68
517.53
6.35
8.74
0.8
18
R69
533.4
7.92
11.91
0.8
R70
533.4
12.7
19.84
1.5
R71
533.4
17.48
30.18
2.4
….
R72
558.8
6.35
8.74
0.8
20
R73
584.2
9.53
13.49
1.5
R74
584.2
12.7
19.84
1.5
R75
584.2
17.48
33.32
2.4
R76
673.1
6.35
8.74
0.8
24
R77
692.15
11.13
16.66
1.5
R78
692.15
15.88
26.97
2.4
R79
692.15
20.62
36.53
2.4
Class 300 NPS
Groove No.
Pitch Dia P
Depth E Note (1)
Width F
Radius at bottom R

General Notes:

Diameter of Raised Portion, K

Class 150 NPS Class 300 NPS Class 400 NPS Class 600 NPS Class 900 NPS Class 1500 NPS Class 2500 NPS
51
1/2
51
1/2
60.5
1/2
63.5
3/4
63.5
3/4
65
1/2
66.5
3/4
63.5
1
70
1
70
1
71.5
1
73
3/4
73
79.5
79.5
81
82.5
1
82.5
90.5
90.5
92
102
102
2
108
2
108
2
114
124
2
121
127
127
133
2
137
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
149
133
3
146
3
146
3
156
3
168
3
154
159
159
168
3
171
4
175
4
175
4
175
4
181
4
203
4
194
4
194
5
210
5
210
5
210
5
216
5
241
5
219
6
229
5
241
6
241
6
241
6
241
6
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
248
6
279
6
273
8
302
8
302
8
302
8
308
8
318
8
340
8
330
10
356
10
356
10
356
10
362
10
371
10
425
10
406
12
413
12
413
12
413
12
419
12
438
12
425
14
495
12
457
14
457
14
457
14
467
14
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
489
14
483
16
508
16
508
16
508
16
524
16
546
16
546
18
575
18
575
18
575
18
594
18
613
18
597
20
635
20
635
20
635
20
648
20
673
20
711
24
749
24
749
24
749
24
772
24
794
24
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
Diameter of Raised Portion, K

Approximate Distance Between Flanges, X

Class 150 NPS Class 300 NPS Class 400 NPS Class 600 NPS Class 900 NPS Class 1500 NPS Class 2500 NPS
3
1/2
3
1/2
4
1/2
4
3/4
4
3/4
4
1/2
4
3/4
4
1
4
1
4
1
4
1
4
3/4
4
4
4
4
4
1
4
4
4
4
3
4
2
6
2
5
2
3
3
2
4
6
5
3
2
3
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
3
4
3
6
3
5
3
4
3
3
3
4
6
5
3
3
4
4
6
4
6
4
5
4
4
4
4
4
3
4
4
5
6
5
6
5
5
5
4
5
4
5
4
6
3
5
6
6
6
6
5
6
4
6
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
3
6
4
6
4
8
6
8
6
8
5
8
4
8
4
8
5
8
4
10
6
10
6
10
5
10
4
10
4
10
6
10
4
12
6
12
6
12
5
12
4
12
5
12
3
14
8
12
6
14
6
14
5
14
4
14
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
6
14
3
16
6
16
6
16
5
16
4
16
8
16
3
18
6
18
6
18
5
18
5
18
8
18
3
20
6
20
6
20
5
20
5
20
10
20
3
24
6
24
6
24
6
24
6
24
11
24
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
Approximate Distance Between Flanges, X
Class 400 NPS Groove No. Pitch Dia P Depth E Note (1) Width F Radius at bottom R
R11
34.14
5.54
7.14
0.8
R12
39.67
6.35
8.74
0.8
R13
42.88
6.35
8.74
0.8
R14
44.45
6.35
8.74
0.8
R15
47.63
6.35
8.74
0.8
R16
50.8
6.35
8.74
0.8
R17
57.15
6.35
8.74
0.8
R18
60.33
6.35
8.74
0.8
R19
65.07
6.35
8.74
0.8
R20
68.27
6.35
8.74
0.8
R21
72.23
7.92
11.91
0.8
R22
82.55
6.35
8.74
0.8
R23
82.55
7.92
11.91
0.8
R24
95.25
7.92
11.91
0.8
R25
101.6
6.35
8.74
0.8
R26
101.6
7.92
11.91
0.8
R27
107.95
7.92
11.91
0.8
R28
111.13
9.53
13.49
1.5
R29
114.3
6.35
8.74
0.8
R30
117.48
7.92
11.91
0.8
R31
123.83
7.92
11.91
0.8
R32
127
9.53
13.49
1.5
R33
131.78
6.35
8.74
0.8
R34
131.78
7.92
11.91
0.8
R35
136.53
7.92
11.91
0.8
R36
149.23
6.35
8.74
0.8
4
R37
149.23
7.92
11.91
0.8
R38
157.18
11.13
16.66
1.5
R39
161.93
7.92
11.91
0.8
R40
171.45
6.35
8.74
0.8
5
R41
180.98
7.92
11.91
0.8
R42
190.5
12.7
19.84
1.5
R43
193.68
6.35
8.74
0.8
R44
193.68
7.92
11.91
0.8
Class 400 NPS
Groove No.
Pitch Dia P
Depth E Note (1)
Width F
Radius at bottom R
6
R45
211.12
7.92
11.91
0.8
R46
211.14
9.53
13.49
1.5
R47
228.6
12.7
19.84
1.5
R48
247.65
6.35
8.74
0.8
8
R49
269.88
7.92
11.91
0.8
R50
269.88
11.13
16.66
1.5
R51
279.4
14.27
23.01
1.5
R52
304.8
6.35
8.74
0.8
10
R53
323.85
7.92
11.91
0.8
R54
323.85
11.13
16.66
1.5
R55
342.9
17.48
30.18
2.4
R56
381
6.35
8.74
0.8
12
R57
381
7.92
11.91
0.8
R58
381
14.27
23.01
1.5
R59
396.88
6.35
8.74
0.8
R60
406.4
17.48
33.32
2.4
14
R61
419.1
7.92
11.91
0.8
R62
419.1
11.13
16.66
1.5
R63
419.1
15.88
26.97
2.4
R64
454.03
6.35
8.74
0.8
16
R65
469.9
7.92
11.91
0.8
R66
469.9
11.13
16.66
1.5
R67
469.9
17.48
30.18
2.4
R68
517.53
6.35
8.74
0.8
18
R69
533.4
7.92
11.91
0.8
R70
533.4
12.7
19.84
1.5
R71
533.4
17.48
30.18
2.4
….
R72
558.8
6.35
8.74
0.8
20
R73
584.2
9.53
13.49
1.5
R74
584.2
12.7
19.84
1.5
R75
584.2
17.48
33.32
2.4
R76
673.1
6.35
8.74
0.8
24
R77
692.15
11.13
16.66
1.5
R78
692.15
15.88
26.97
2.4
R79
692.15
20.62
36.53
2.4
Class 400 NPS
Groove No.
Pitch Dia P
Depth E Note (1)
Width F
Radius at bottom R

General Notes:

Diameter of Raised Portion, K

Class 150 NPS Class 300 NPS Class 400 NPS Class 600 NPS Class 900 NPS Class 1500 NPS Class 2500 NPS
51
1/2
51
1/2
60.5
1/2
63.5
3/4
63.5
3/4
65
1/2
66.5
3/4
63.5
1
70
1
70
1
71.5
1
73
3/4
73
79.5
79.5
81
82.5
1
82.5
90.5
90.5
92
102
102
2
108
2
108
2
114
124
2
121
127
127
133
2
137
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
149
133
3
146
3
146
3
156
3
168
3
154
159
159
168
3
171
4
175
4
175
4
175
4
181
4
203
4
194
4
194
5
210
5
210
5
210
5
216
5
241
5
219
6
229
5
241
6
241
6
241
6
241
6
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
248
6
279
6
273
8
302
8
302
8
302
8
308
8
318
8
340
8
330
10
356
10
356
10
356
10
362
10
371
10
425
10
406
12
413
12
413
12
413
12
419
12
438
12
425
14
495
12
457
14
457
14
457
14
467
14
Class 150 NPS
Class 300 NPS
Class 400 NPS
Class 600 NPS
Class 900 NPS
Class 1500 NPS
Class 2500 NPS
489
14
483
16
508
16
508
16
508
16
524
16
546
16
546
18
575
18
575
18
575
18
594
18