Standard 40 Durometer Black SBR (Styrene Butadiene Rubber) Stoppers

Below is a list of standard stopper sizes that are offered in 40 Durometer Shore A black SBR (Styrene Butadiene Rubber).

Diagram for Standard 40 Durometer Black SBR (Styrene Butadiene Rubber) Stoppers.

Size Top Bottom Length Estimated
Pcs./Lb.

S-K36

3/16"

1/16"

3/4"

-

XXX

5/16"

3/16"

3/4"

-

XX

3/8"

1/4"

3/4"

-

000

15/32"

3/16"

3/4"

-

000

15/32"

23/64"

45/64"

181

00

19/32"

25/64"

63/64"

100

0

43/64"

33/64"

63/64"

75

1

3/4"

35/64"

63/64"

65

2

25/32"

5/8"

63/64"

50

3

15/16"

23/32"

63/64"

40

4

1 1/64"

25/32"

63/64"

30

5

1 1/16"

29/32"

63/64"

25

5 1/2

1 3/32"

15/16"

63/64"

26

6

1 1/4"

1 1/64"

63/64"

20

7

1 29/64"

1 3/16"

63/64"

15

8

1 39/64"

1 19/64"

63/64"

12

9

1 49/64"

1 29/64"

63/64"

10

10

1 31/32"

1 21/32"

63/64"

8

11

2 13/64"

1 57/64"

63/64"

7

11 1/2

2 31/64"

1 31/32"

63/64"

6

13

2 43/64"

2 9/32"

63/64"

5

13 1/2

2 61/64"

2 7/16"

1 3/8"

3

14

3 35/64"

2 61/64"

1 17/32"

-

15

4 3/64"

3 17/64"

1 17/32"

-

16

5"

3 35/64"

1 31/32"

-

Online Request For Quotation Form.

If you don't see the stopper size you are looking for, just ask us and we will quote you in it. We supply both standard and custom stoppers in a wide range of materials, including Fluorocarbon (both Fluorel and Viton®), Fluorosilicone, Silicone, Urethane, Nitrile, Neoprene, EPR, SBR, and Natural Rubber. We mold stoppers in translucent, colored or black rubber. Some compounds can conduct electricity, or be used in FDA, dental, or pharmaceutical applications.