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Buna-N O-Rings

8 products

Buna-N O-Rings, sometimes called Nitrile O-Rings or NBR O-Rings, are resistant to oils, fuels, and greases – plus mild chemicals and water. Buna-N is a tough and durable material with good resistance to abrasion, compression, and tearing. It is a multipurpose material with broad ranging application coverage.

Product name Dash Size Cross Section - Actual Inner Diameter - Actual Outer Diameter - Actual Specifications Met Price
Buna-N O-Ring - 1.5mm Wide x 31mm ID - Pack of 100 1.5 mm 31 mm 34 mm
$18.50 / pack of 100
Buna-N O-Ring - 1.5mm Wide x 31mm ID - Pack of 100
Buna-N O-Ring - 1.5mm Wide x 31mm ID - Pack of 100
Brand USA Sealing
Item # AA0535
Mfr. Model # ZUSAH1.5X31
View Product Details
Price
$18.50 / pack of 100

Estimated to ship Fri. Jun 20
Buna-N O-Ring - 2mm Wide x 31mm ID - Pack of 50 2 mm 31 mm 35 mm
$13.20 / pack of 50
Buna-N O-Ring - 2mm Wide x 31mm ID - Pack of 50
Buna-N O-Ring - 2mm Wide x 31mm ID - Pack of 50
Brand USA Sealing
Item # AA0729
Mfr. Model # ZUSAH2X31
View Product Details
Price
$13.20 / pack of 50

1 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
Buna-N O-Ring - 2.5mm Wide x 31mm ID - Pack of 50 2.5 mm 31 mm 36 mm
$12.60 / pack of 50
Buna-N O-Ring - 2.5mm Wide x 31mm ID - Pack of 50
Buna-N O-Ring - 2.5mm Wide x 31mm ID - Pack of 50
Brand USA Sealing
Item # AA0957
Mfr. Model # ZUSAH2.5X31
View Product Details
Price
$12.60 / pack of 50

15 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
Buna-N O-Ring - 3mm Wide x 31mm ID - Pack of 50 3 mm 31 mm 37 mm
$12.63 / pack of 50
Buna-N O-Ring - 3mm Wide x 31mm ID - Pack of 50
Buna-N O-Ring - 3mm Wide x 31mm ID - Pack of 50
Brand USA Sealing
Item # AA1119
Mfr. Model # ZUSAH3X31
View Product Details
Price
$12.63 / pack of 50

Estimated to ship Fri. Jun 20
Buna-N O-Ring - 3.5mm Wide x 31mm ID - Pack of 25 3.5 mm 31 mm 38 mm
$10.98 / pack of 25
Buna-N O-Ring - 3.5mm Wide x 31mm ID - Pack of 25
Buna-N O-Ring - 3.5mm Wide x 31mm ID - Pack of 25
Brand USA Sealing
Item # AA1357
Mfr. Model # ZUSAH3.5X31
View Product Details
Price
$10.98 / pack of 25

Estimated to ship Fri. Jun 20
Buna-N O-Ring - 4mm Wide x 31mm ID - Pack of 25 4 mm 31 mm 39 mm
$10.58 / pack of 25
Buna-N O-Ring - 4mm Wide x 31mm ID - Pack of 25
Buna-N O-Ring - 4mm Wide x 31mm ID - Pack of 25
Brand USA Sealing
Item # AA1563
Mfr. Model # ZUSAH4X31
View Product Details
Price
$10.58 / pack of 25

1 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
Buna-N O-Ring - 4.5mm Wide x 31mm ID - Pack of 10 4.5 mm 31 mm 40 mm
$13.73 / pack of 10
Buna-N O-Ring - 4.5mm Wide x 31mm ID - Pack of 10
Buna-N O-Ring - 4.5mm Wide x 31mm ID - Pack of 10
Brand USA Sealing
Item # AA1716
Mfr. Model # ZUSAH4.5X31
View Product Details
Price
$13.73 / pack of 10

7 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
Buna-N O-Ring - 5mm Wide x 31mm ID - Pack of 25 5 mm 31 mm 41 mm
$10.98 / pack of 25
Buna-N O-Ring - 5mm Wide x 31mm ID - Pack of 25
Buna-N O-Ring - 5mm Wide x 31mm ID - Pack of 25
Brand USA Sealing
Item # AA1767
Mfr. Model # ZUSAH5X31
View Product Details
Price
$10.98 / pack of 25

1 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
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  1. Inner Diameter - Actual
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Cross Section - Actual
  1. 1.5 mm 1 item
  2. 2 mm 1 item
  3. 2.5 mm 1 item
  4. 3 mm 1 item
  5. 3.5 mm 1 item
  6. 4 mm 1 item
  7. 4.5 mm 1 item
  8. 5 mm 1 item
Inner Diameter - Actual
  1. 0.07" 2 items
  2. 0.208" 1 item
  3. 0.234" 1 item
  4. 0.239" 1 item
  5. 0.296" 1 item
  6. 0.299" 1 item
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  21. 1.171" 1 item
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  24. 1.296" 1 item
  25. 1.421" 1 item
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  35. 1.975" 2 items
  36. 1.987" 1 item
  37. 2.05" 1 item
  38. 2.1" 2 items
  39. 2.225" 2 items
  40. 2.35" 2 items
  41. 2.475" 2 items
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  51. 3.35" 2 items
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  55. 3.725" 2 items
  56. 3.739" 1 item
  57. 3.85" 2 items
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  60. 4.1" 2 items
  61. 4.225" 2 items
  62. 4.35" 2 items
  63. 4.359" 1 item
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  88. 6.239" 1 item
  89. 6.475" 2 items
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  92. 7.225" 2 items
  93. 7.475" 3 items
  94. 7.725" 1 item
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  96. 7.975" 2 items
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  108. 11.475" 2 items
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  113. 15.955" 3 items
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  116. 18.455" 1 item
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  125. 1.25 mm 1 item
  126. 1.8 mm 4 items
  127. 2 mm 4 items
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  131. 3 mm 5 items
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  135. 4 mm 7 items
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  160. 9.5 mm 7 items
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  240. 32.5 mm 6 items
  241. 33 mm 9 items
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  434. 193 mm 1 item
  435. 194 mm 2 items
  436. 194.3 mm 1 item
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  440. 203 mm 2 items
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  449. 220 mm 3 items
  450. 224 mm 2 items
  451. 225 mm 3 items
  452. 229.3 mm 1 item
  453. 230 mm 4 items
  454. 232 mm 1 item
  455. 235 mm 3 items
  456. 236 mm 3 items
  457. 239.3 mm 1 item
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  459. 243 mm 2 items
  460. 245 mm 2 items
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  467. 270 mm 4 items
  468. 272 mm 2 items
  469. 274.5 mm 1 item
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  471. 279.3 mm 1 item
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  475. 289.3 mm 1 item
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  494. 374.5 mm 1 item
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  496. 387 mm 2 items
  497. 399.5 mm 1 item
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  499. 487 mm 1 item
  500. 630 mm 1 item
Outer Diameter - Actual
  1. 34 mm 1 item
  2. 35 mm 1 item
  3. 36 mm 1 item
  4. 37 mm 1 item
  5. 38 mm 1 item
  6. 39 mm 1 item
  7. 40 mm 1 item
  8. 41 mm 1 item