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-000 Series 1/16" CS




Image Model+ Item Name Stock Price Quantity Discounts
574-004 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-004

574-004 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-004 (0.053" W X 0.096" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
2030
$0.05

Add:
Min:  20
Quantity Discounts
20-499$0.05
500-4,999$0.04
5,000+$0.03
574-005 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-005

574-005 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-005 (0.053" W X 0.127" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
4008
$0.06

Add:
Min:  17
Quantity Discounts
17-499$0.06
500-33,333$0.05
33,334+$0.03
574-006 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-006

574-006 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-006 (0.053" W X 0.14" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
3582
$0.06

Add:
Min:  17
Quantity Discounts
17-499$0.06
500-3,333$0.05
3,334+$0.03
574-007 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-007

574-007 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-007 (0.053" W X 0.171" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
4736
$0.07

Add:
Min:  15
Quantity Discounts
15-499$0.07
500-2,499$0.05
2,500+$0.04
574-008 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-008

574-008 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-008 (0.053" W X 0.202" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
1092
$0.08

Add:
Min:  13
Quantity Discounts
13-499$0.08
500-2,499$0.06
2,500+$0.04
574-009 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-009

574-009 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-009 (0.053" W X 0.234" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
3643
$0.09

Add:
Min:  12
Quantity Discounts
12-499$0.09
500-2,499$0.07
2,500+$0.05
574-010 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-010

574-010 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-010 (0.053" W X 0.265" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
2950
$0.10

Add:
Min:  10
Quantity Discounts
10-249$0.10
250-2,499$0.08
2,500+$0.05
574-011 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-011

574-011 90A Duro Buna-N Rubber Dished Back-up Rings

AS5688-011 (0.053" W X 0.327" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring...
3485
$0.10

Add:
Min:  10
Quantity Discounts
10-249$0.10
250-2,499$0.08
2,500+$0.05
574-012 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-012

574-012 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-012 (0.053" W X 0.39" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
2000
$0.11

Add:
Min:  10
Quantity Discounts
10-249$0.11
250-2,499$0.08
2,500+$0.06
574-013 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-013

574-013 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-013 (0.053" W X 0.455" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
803
$0.12

Add:
Min:  9
Quantity Discounts
9-249$0.12
250-2,499$0.09
2,500+$0.06
574-014 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-014

574-014 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-014 (0.053" W X 0.518" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
592
$0.13

Add:
Min:  8
Quantity Discounts
8-249$0.13
250-2,499$0.10
2,500+$0.07
574-015 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-015

574-015 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-015 (0.053" W X 0.58" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
935
$0.14

Add:
Min:  8
Quantity Discounts
8-249$0.14
250-2,499$0.11
2,500+$0.07
574-016 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-016

574-016 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-016 (0.053" W X 0.643" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
882
$0.14

Add:
Min:  8
Quantity Discounts
8-249$0.14
250-2,499$0.11
2,500+$0.07
574-017 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-017

574-017 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-017 (0.053" W X 0.705" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
1151
$0.15

Add:
Min:  7
Quantity Discounts
7-249$0.15
250-1,249$0.11
1,250+$0.08
574-018 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-018

574-018 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-018 (0.053" W X 0.768" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
781
$0.16

Add:
Min:  7
Quantity Discounts
7-249$0.16
250-1,249$0.12
1,250+$0.08
574-019 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-019

574-019 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-019 (0.053" W X 0.83" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
2589
$0.17

Add:
Min:  6
Quantity Discounts
6-249$0.17
250-1,249$0.13
1,250+$0.09
574-020 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-020

574-020 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-020 (0.053" W X 0.893" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
780
$0.18

Add:
Min:  6
Quantity Discounts
6-249$0.18
250-1,249$0.14
1,250+$0.09
574-021 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-021

574-021 90A Duro Buna-N Rubber Dished Back-up Rings

  A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing applications. These Buna- N 90 durometer backup...
708
$0.18

Add:
Min:  6
Quantity Discounts
6-249$0.18
250-1,249$0.14
1,250+$0.09
574-022 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-022

574-022 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-022 (0.053" W X 1.018" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
587
$0.19

Add:
Min:  6
Quantity Discounts
6-249$0.19
250-1,249$0.14
1,250+$0.10
574-023 90A Duro Buna-N Rubber Dished Back-up Rings N8-90-023

574-023 90A Duro Buna-N Rubber Dished Back-up Rings

AS568-023 (0.053" W X 1.08" ID X 0.049"HT) A backup ring, or anti extrision device, is used in both static and dynamic O-Ring sealing...
710
$0.20

Add:
Min:  5
Quantity Discounts
5-249$0.20
250-1,249$0.15
1,250+$0.10


What are the most common O-ring compounds?

We stock O-Rings in over 20 different compounds and durometers the following six are the standard rubber materials in a range of durometers (Shore A) hardness to satisfy practically any service condition:

Buna-N O-Rings / Nitrile O-Rings / NBR: Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°F to +257°F) and one of the best performance-to-cost values. It's an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range to +300°F.
AS-568 Buna-N O-Rings | Metric Buna-N O-Rings

Viton® O-Rings / FKM: Fluorocarbon (Viton®) exhibits exceptional resistance to chemicals, oils, temperature extremes (-13°F to +446°F), low compression set, low gas permeability and excellent aging characteristics. Applications include: aircraft engines, automotive fuel handling systems, and chemical processing industries. FKM is also suitable for high vacuum applications. It is not recommended for exposure to ketones, alkalis, and Skydrol® fluids. Custom compounds are available with improved chemical and low temperature resistance.
AS-568 Viton® O-Rings | Metric Viton® O-Rings

Ethylene-Propylene / EPDM O-Rings: EPDM has outstanding resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight (-40ºF to +275ºF); but it is not recommended for gasoline, petroleum oil and grease, and hydrocarbon environments. This popular rubber compound is usually the first choice for low torque drive belt applications.
AS-568 EPDM O-Rings | Metric EPDM O-Rings

Silicone O-Rings / VMQ: In the Silicone family, you will find compounds which are superior as static seals in extreme temperature conditions. Standard compounds handle operating temperatures -85º to +400ºF. Silicone compounds are popular in food and medical applications because they are very clean and do not impart odor or taste. Special Phenyl silicones can be used down to -148°F.
AS-568 Silicone O-Rings | Metric Silicone O-Rings

Neoprene® O-Rings / CR: Neoprene (-40º to +250ºF) is reasonably priced and features good resistance to petroleum oils, ozone, sunlight and oxygen aging, relatively low compression set, good resilience and outstanding physical toughness. It is the preferred sealing material for the refrigeration industry because of its resistance to ammonia and Freon®.
AS-568 Neoprene® O-Rings