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