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150 lb full face Gasket ANSI Flange Dimension Specifications

Full Face Gaskets for 150 lb ASME/ANSI Pipe Flanges
Nominal
Pipe Size		 Gasket Number of Bolt Holes Diameter of Bolt Holes Bolt Circle
I.D. O.D.
1/2"
13/16"
3 1/2"
4
5/8"
2 3/8"
3/4"
1 1/16"
3 7/8"
4
5/8"
2 3/4"
1" 
1 5/16"
4 1/4"
4
5/8"
3 1/8"
1 1/4"
1 5/8" 
4 5/8"
4
5/8"
3 1/2"
1 1/2"
1 7/8" 
5" 
4
5/8"
3 7/8"
2" 
2 3/8" 
6" 
4
3/4"
4 3/4"
2 1/2" 
2 7/8" 
7" 
4
3/4"
5 1/2"
3" 
3 1/2" 
7 1/2"
4
3/4"
6" 
3 1/2"
4" 
8 1/2"
8
3/4"
7"
4" 
4 1/2" 
9" 
8
3/4"
7 1/2"
5" 
5 9/16"
10" 
8
7/8"
8 1/2"
6" 
6 5/8" 
11" 
8
7/8"
9 1/2"
8"
8 5/8" 
13 1/2" 
8
7/8"
11 3/4"
10" 
10 3/4" 
16" 
12
1" 
14 1/4"
12" 
12 3/4" 
19" 
12
1" 
17" 
14" 
14" 
21" 
12
1 1/8"
18 3/4"
16" 
16" 
23 1/2" 
16
1 1/8"
21 1/4"
18" 
18" 
25" 
16
1 1/4"
22 3/4"
20" 
20" 
27 1/2" 
20
1 1/4"
25" 
22" 
22" 
29 1/2" 
20
1 3/8"
27 1/4"
24" 
24" 
32" 
20
1 3/8"
29 1/2"
26" 
26" 
34 1/4" 
24
1 3/8"
31 3/4"
28"
28"
36 1/2"
28
1 3/8"
34" 
30"
30"
38 3/4"
28
1 3/8"
36" 
32"
32"
41 3/4"
28
1 5/8"
38 1/2"
34"
34"
43 3/4"
32
1 5/8"
40 1/2"
36"
36"
46" 
32
1 5/8"
42 3/4"
38"
38"
48 3/4"
32
1 5/8"
45 1/4"
40"
40"
50 3/4"
36
1 5/8"
47 1/4"
42"
42"
53" 
36
1 5/8"
49 1/2"
44"
44"
55 1/4"
40
1 5/8"
51 3/4"
46"
46"
57 1/4"
40
1 5/8"
53 3/4"
48"
48"
59 1/2"
44
1 5/8"
56" 
50"
50"
61 3/4"
44
1 7/8"
58 1/4"
52"
52"
64" 
44
1 7/8"
60 1/2"
54"
54"
66 1/4"
44
1 7/8"
62 3/4"
60"
60"
73"
52
1 7/8"
69 1/4"
66"
66"
80" 
52
1 7/8"
76" 
72"
72"
86 1/2"
60
1 7/8"
82 1/2"
84"
84"
99 3/4"
64
2 1/8"
95 1/2"
96"
96"
113 1/4"
68
2 3/8"
108 1/2" 
 Standard thickness 1/16" and 1/8"; other thicknesses available by special order.