Cord Stock

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)

(A) Buna-N (90 Durometer)
(B) Buna-N (70 Durometer)
(C) Buna-N (50 Durometer)
(D) Buna-N (40 Durometer)
(E) Buna-N (70 Durometer-White)
(F) Neoprene (70 Durometer)
(G) EPR (70 Durometer)

(H) Viton™ (75 Durometer-Black)
(I) Viton™ (75 Durometer-Brown)
(J) Viton™ (90 Durometer-Black)
(K) Silicone (70 Durometer)
(L) Gum Rubber (40 Durometer)
(M) Sponge Closed Cell
(N) Aflas® (75 Durometer)

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"

1/16"

.070 ± .007"

3/32"

.093 ± .007"

3/32"

.103 ± .007"

1/8"

.125 ± .007"

1/8"

.139 ± .007"

3/16"

.188 ± .007"

3/16"

.210 ± .007"

1/4"

.250 ± .008"

1/4"

.275 ± .008"

5/16"

.313 ± .008"

3/8"

.375 ± .010"

13/32"

.406 ± .010"

7/16"

.437 ± .012"

15/32"

.472 ± .015"

1/2"

.500 ± .015"

9/16"

.562 ± .015"

5/8"

.625 ± .015"

3/4"

.750 ± .015"

7/8"

.875 ± .020"

1.000 ± .020"

1-1/16"

1.062 ± .030"

1-1/8"

1.125 ± .030"

1-1/4"

1.250 ± .040"

1-1/2"

1.500 ± .060"

Match the corresponding letter above to determine the type of material.

(A) Buna-N (90 Durometer)
(B) Buna-N (70 Durometer)
(C) Buna-N (50 Durometer)
(D) Buna-N (40 Durometer)
(E) Buna-N (70 Durometer-White)
(F) Neoprene (70 Durometer)
(G) EPR (70 Durometer)

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"

3.0mm ± .12mm

.118"

3.5mm ± .15mm

.139"

4.0mm ± .15mm

.158"

4.5mm ± .15mm

.177"

5.0mm ± .20mm

.197"

5.7mm ± .25mm

.224"

6.0mm ± .25mm

.236"

7.0mm ± .25mm

.275"

7.5mm ± .25mm

.295"

8.5mm ± .25mm

.335"

9.0mm ± .25mm

.354"

10.0mm ± .25mm

.393"

12.0mm ± .45mm

.472"

14.0mm ± .50mm

.550"

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®

20762 Linear Lane Lake Forest, CA 92630 • ISO Certified Company