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-400 Series - 0.275 -1/4" CS




Image Model+ Item Name Stock Price Quantity Discounts
-425 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70425

-425 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 4 1/2"ID X 5"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
70
$1.61

Add:

Quantity Discounts
1-28$1.61
29-186$1.21
187+$0.81
-426 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70426

-426 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 4 5/8"ID X 5 1/8"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
0
$1.65

Add:

Quantity Discounts
1-28$1.65
29-181$1.24
182+$0.83
-427 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70427

-427 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 4 3/4"ID X 5 1/4"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
66
$1.72

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Quantity Discounts
1-27$1.72
28-174$1.29
175+$0.86
-428 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70428

-428 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 4 7/8"ID X 5 3/8"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
78
$1.74

Add:

Quantity Discounts
1-26$1.74
27-172$1.31
173+$0.87
-429 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70429

-429 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 5"ID X 5 1/2"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
30
$1.79

Add:

Quantity Discounts
1-26$1.79
27-167$1.34
168+$0.90
-430 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70430

-430 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 5 1/8"ID X 5 5/8"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
79
$1.85

Add:

Quantity Discounts
1-25$1.85
26-162$1.39
163+$0.93
-431 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70431

-431 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 5 1/4"ID X 5 3/4"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
39
$1.87

Add:

Quantity Discounts
1-24$1.87
25-160$1.40
161+$0.94
-432 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70432

-432 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 5 3/8"ID X 5 7/8"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
73
$1.92

Add:

Quantity Discounts
1-24$1.92
25-156$1.44
157+$0.96
-433 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70433

-433 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 5 1/2"ID X 6"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
65
$1.98

Add:

Quantity Discounts
1-23$1.98
24-151$1.49
152+$0.99
-434 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70434

-434 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 5 5/8"ID X 6 1/8"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
61
$1.04

Add:

Quantity Discounts
1-44$1.04
45-288$0.78
289+$0.52
-435 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70435

-435 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 5 3/4"ID X 6 1/4"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
0
$2.07

Add:

Quantity Discounts
1-22$2.07
23-144$1.55
145+$1.04
-436 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70436

-436 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 5 7/8"ID X 6 3/8"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
69
$2.12

Add:

Quantity Discounts
1-22$2.12
23-141$1.59
142+$1.06
-437 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70437

-437 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 6"ID X 6 1/2"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
0
$2.14

Add:

Quantity Discounts
1-21$2.14
22-140$1.61
141+$1.07
-438 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70438

-438 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 6 1/4"ID X 6 3/4"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
0
$2.20

Add:

Quantity Discounts
1-21$2.20
22-136$1.65
137+$1.10
-439 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70439

-439 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 6 1/2"ID X 7"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
65
$2.36

Add:

Quantity Discounts
1-19$2.36
20-127$1.77
128+$1.18
-440 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70440

-440 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 6 3/4"ID X 7 1/4"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
60
$2.49

Add:

Quantity Discounts
1-18$2.49
19-120$1.87
121+$1.25
-441 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70441

-441 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 7"ID X 7 1/2"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
34
$2.51

Add:

Quantity Discounts
1-18$2.51
19-119$1.88
120+$1.26
-442 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70442

-442 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 7 1/4"ID X 7 3/4"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
0
$2.58

Add:

Quantity Discounts
1-18$2.58
19-116$1.94
117+$1.29
-443 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70443

-443 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 7 1/2"ID X 8"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or consumables...
34
$2.69

Add:

Quantity Discounts
1-17$2.69
18-111$2.02
112+$1.35
-444 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring FDAB70444

-444 FDAB70 FDA (NBR) Buna-N Nitrile 70 Duro O-Ring

O-ring Size: 7 3/4"ID X 8 1/4"OD X 1/4"CS FDA Grade, Buna-N O-Rings 70 Duro (NBR): Commonly used in applications where food or...
42
$2.84

Add:

Quantity Discounts
1-16$2.84
17-105$2.13
106+$1.42


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