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STANDARD O-RING CORD INCH SIZES & MATERIAL

Below is a list of o-ring cord sizes and available materials.
A legend is provided at the bottom of this chart.
("X" indicates material availability)

NOMINAL
CROSS
SECTION
(INCH)
ACTUAL CROSS
SECTION (INCH)
(A)
(B)
(C)
(D)
(E)
(F)
(G)
(H)
(I)
(J)
(K)
(L)
(M)
(N)
1/16"
.063 ± .005"
 
X
                       
1/16"
.070 ± .007"
 
X
       
X
X
   
X
     
3/32"
.093 ± .007"
 
X
     
X
 
X
   
X
   
X
3/32"
.103 ± .007"
X
X
     
X
X
X
X
X
X
   
X
1/8"
.125 ± .007"
X
X
     
X
X
X
 
X
X
 
X
 
1/8"
.139 ± .007"
X
X
X
X
X
X
X
X
X
X
X
   
X
3/16"
.188 ± .007"
 
X
     
X
X
X
 
X
X
 
X
 
3/16"
.210 ± .007"
X
X
X
X
X
X
X
X
X
X
X
   
X
1/4"
.250 ± .008"
X
X
X
   
X
X
X
X
X
X
 
X
X
1/4"
.275 ± .008"
X
X
X
X
X
X
X
X
X
X
X
   
X
5/16"
.313 ± .008"
X
X
 
   
X
X
X
X
X
X
 
X
X
3/8"
.375 ± .010"
X
 
X
 
X
X
X
X
X
X
X
X
X
X
13/32"
.406 ± .010"
                   
X
     
7/16"
.437 ± .012"
X
X
X
 
X
 
X
X
 
X
X
     
15/32"
.472 ± .015"
 
X
X
       
X
 
X
       
1/2"
.500 ± .015"
X
X
X
 
X
X
X
X
X
 
X
X
X
X
9/16"
.562 ± .015"
 
X
     
X
X
X
           
5/8"
.625 ± .015"
 
X
X
   
X
X
X
   
X
X
X
 
3/4"
.750 ± .015"
 
X
     
X
X
X
   
X
X
X
 
7/8"
.875 ± .020"
 
X
                       
1"
1.000 ± .020"
 
X
         
X
     
X
X
 
1-1/16"
1.062 ± .030"
 
X
                       
1-1/8"
1.125 ± .030"
 
X
                       
1-1/4"
1.250 ± .040"
 
X
         
X
           
1-1/2"
1.500 ± .060"
 
X
                       
Match the corresponding letter above to determine the type of material.

METRIC SIZES & MATERIAL

Below is a list of o-ring cord sizes and available materials.
A legend is provided at the bottom of this chart.
("X" indicates material availability)


(A) Buna-N (70 Durometer)
(B) Buna-N (90 Durometer)
(C) Neoprene (70 Durometer)
(D) EPR (70 Durometer)
(E) Viton® (75 Durometer - Black)
(F) Viton® (90 Durometer)
(G) Viton® (75 Durometer - Brown)
(H) Silicone (70 Durometer)
(I) Aflas®
CROSS SECTION
(METRIC)
CROSS SECTION
(INCH)
(A)
(B)
(C)
(D)
(E)
(F)
(G)
(H)
(I)
2.0mm ± .10mm
.079"
X
   
X
X
   
X
 
3.0mm ± .12mm
.118"
X
   
X
X
   
X
 
3.5mm ± .15mm
.139"
X
X
X
X
X
X
X
X
X
4.0mm ± .15mm
.158"
X
   
X
X
X
 
X
 
4.5mm ± .15mm
.177"
X
     
X
       
5.0mm ± .20mm
.197"
X
X
 
X
X
   
X
 
5.7mm ± .25mm
.224"
X
X
X
X
X
   
X
 
6.0mm ± .25mm
.236"
X
X
 
X
X
   
X
 
7.0mm ± .25mm
.275"
X
X
X
X
X
X
X
X
X
7.5mm ± .25mm
.295"
X
     
X
       
8.5mm ± .25mm
.335"
X
     
X
 
X
X
 
9.0mm ± .25mm
.354"
X
     
X
       
10.0mm ± .25mm
.393"
X
   
X
X
   
X
 
12.0mm ± .45mm
.472"
X
     
X
X
     
14.0mm ± .50mm
.550"
X
     
X
       
                     
Match the corresponding letter above to determine the type of material.
(A) Buna-N (70 Durometer)
(B) Buna-N (90 Durometer)
(C) Neoprene (70 Durometer)
(D) EPR (70 Durometer)
(E) Viton® (75 Durometer - Black)
(F) Viton® (90 Durometer)
(G) Viton® (75 Durometer - Brown)
(H) Silicone (70 Durometer)
(I) Aflas®