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300 lb ring gasket ANSI Flange Dimension Specifications

 

Ring Gaskets for 300 lb ASME/ANSI Pipe Flanges
Nominal
Pipe Size
Gasket
Nominal
Pipe Size
Gasket
I.D. O.D. I.D. O.D.
1/2"
27/32"
2 1/8"
8"
8 5/8"
12 1/8"
3/4"
1 1/16" 
2 5/8"
10"
10 3/4"
14 1/4"
1" 
1 5/16" 
2 7/8"
12"
12 3/4"
16 5/8"
1 1/4"
1 21/32"
3 1/4"
14"
14" 
19 1/8"
1 1/2"
1 29/32"
3 3/4"
15"
15" 
20 1/8"
2" 
2 3/8" 
4 3/8"
16"
16" 
21 1/4"
2 1/2"
2 7/8" 
5 1/8"
18"
18" 
23 1/2"
3" 
3 1/2" 
5 7/8"
20"
20" 
25 3/4"
3 1/2"
4" 
6 1/2"
22"
22" 
27 5/8"
4" 
4 1/2" 
7 1/8"
24"
24" 
30 1/2"
4 1/2"
5" 
7 5/8"
30"
30" 
37 1/2"
5" 
5 9/16" 
8 1/2"
36"
36" 
44" 
6" 
6 5/8" 
9 7/8"
42"
42" 
50 3/4"
7" 
7 5/8" 
10 7/8"
48"
48" 
58 3/4"
Standard thickness 1/16" and 1/8"; other thicknesses available by special order