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-300 Series - 0.210 - 3/16" CS




Image Model+ Item Name Stock Price Quantity Discounts
-319 U90 EU Polyether Urethane 90 Duro O-Ring U90319

-319 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 1/16"ID X 1 7/16"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$1.77

Add:
Min:  170
Quantity Discounts
170-751$1.77
752-2,808$1.33
2,809+$0.89
-320 U90 EU Polyether Urethane 90 Duro O-Ring U90320

-320 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 1/8"ID X 1 1/2"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$1.84

Add:
Min:  93
Quantity Discounts
93-724$1.84
725-2,717$1.38
2,718+$0.92
-321 U90 EU Polyether Urethane 90 Duro O-Ring U90321

-321 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 3/16"ID X 1 9/16"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$1.92

Add:
Min:  85
Quantity Discounts
85-694$1.92
695-2,604$1.44
2,605+$0.96
-322 U90 EU Polyether Urethane 90 Duro O-Ring U90322

-322 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 1/4"ID X 1 5/8"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
13
$2.13

Add:

Quantity Discounts
1-15$2.13
16-93$1.60
94+$1.07
-323 U90 EU Polyether Urethane 90 Duro O-Ring U90323

-323 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 5/16"ID X 1 11/16"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
3
$2.20

Add:

Quantity Discounts
1-15$2.20
16-90$1.65
91+$1.10
-324 U90 EU Polyether Urethane 90 Duro O-Ring U90324

-324 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 3/8"ID X 1 3/4"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$2.28

Add:
Min:  132
Quantity Discounts
132-584$2.28
585-2,192$1.71
2,193+$1.14
-325 U90 EU Polyether Urethane 90 Duro O-Ring U90325

-325 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 1/2"ID X 1 7/8"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
1
$2.50

Add:

Quantity Discounts
1-13$2.50
14-79$1.88
80+$1.25
-326 U90 EU Polyether Urethane 90 Duro O-Ring U90326

-326 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 5/8"ID X 2"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
17
$2.93

Add:

Quantity Discounts
1-11$2.93
12-68$2.20
69+$1.47
-327 U90 EU Polyether Urethane 90 Duro O-Ring U90327

-327 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 3/4"ID X 2 1/8"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
17
$3.09

Add:

Quantity Discounts
1-10$3.09
11-64$2.32
65+$1.55
-328 U90 EU Polyether Urethane 90 Duro O-Ring U90328

-328 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 1 7/8"ID X 2 1/4"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
3
$3.25

Add:

Quantity Discounts
1-10$3.25
11-61$2.44
62+$1.63
-329 U90 EU Polyether Urethane 90 Duro O-Ring U90329

-329 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 2"ID X 2 3/8"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
373
$3.55

Add:

Quantity Discounts
1-9$3.55
10-56$2.66
57+$1.78
-330 U90 EU Polyether Urethane 90 Duro O-Ring U90330

-330 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 2 1/8"ID X 2 1/2"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$3.72

Add:
Min:  81
Quantity Discounts
81-358$3.72
359-1,344$2.79
1,345+$1.86
-331 U90 EU Polyether Urethane 90 Duro O-Ring U90331

-331 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 2 1/4"ID X 2 5/8"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
7
$3.89

Add:

Quantity Discounts
1-8$3.89
9-51$2.92
52+$1.95
-332 U90 EU Polyether Urethane 90 Duro O-Ring U90332

-332 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 2 3/8"ID X 2 3/4"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$4.62

Add:
Min:  65
Quantity Discounts
65-288$4.62
289-1,082$3.47
1,083+$2.31
-333 U90 EU Polyether Urethane 90 Duro O-Ring U90333

-333 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 2 1/2"ID X 2 7/8"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$4.79

Add:
Min:  63
Quantity Discounts
63-277$4.79
278-1,041$3.59
1,042+$2.40
-334 U90 EU Polyether Urethane 90 Duro O-Ring U90334

-334 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 2 5/8"ID X 3"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$5.34

Add:

Quantity Discounts
1-6$5.34
7-37$4.01
38+$2.67
-335 U90 EU Polyether Urethane 90 Duro O-Ring U90335

-335 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 2 3/4"ID X 3 1/8"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$5.51

Add:
Min:  55
Quantity Discounts
55-241$5.51
242-905$4.13
906+$2.76
-336 U90 EU Polyether Urethane 90 Duro O-Ring U90336

-336 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 2 7/8"ID X 3 1/4"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
3
$5.68

Add:

Quantity Discounts
1-5$5.68
6-35$4.26
36+$2.84
-337 U90 EU Polyether Urethane 90 Duro O-Ring U90337

-337 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 3"ID X 3 3/8"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
230
$6.32

Add:
Min:  35
Quantity Discounts
35-5$6.32
6-31$4.74
32+$3.16
-338 U90 EU Polyether Urethane 90 Duro O-Ring U90338

-338 U90 EU Polyether Urethane 90 Duro O-Ring

O-ring Size: 3 1/8"ID X 3 1/2"OD X 3/16"CS   Description: Polyurethane Polyurethane rubber is notable for its combination of hardness with...
0
$6.03

Add:
Min:  50
Quantity Discounts
50-220$6.03
221-827$4.52
828+$3.02


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