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Buna-N O-Rings

6 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 - 2mm Wide x 78mm ID - Pack of 10 2 mm 78 mm 82 mm
$9.08 / pack of 10
Buna-N O-Ring - 2mm Wide x 78mm ID - Pack of 10
Buna-N O-Ring - 2mm Wide x 78mm ID - Pack of 10
Brand USA Sealing
Item # AA0785
Mfr. Model # ZUSAH2X78
View Product Details
$9.08 / pack of 10

Expected to ship Tue. Apr 30
Buna-N O-Ring - 3mm Wide x 78mm ID - Pack of 25 3 mm 78 mm 84 mm
$16.00 / pack of 25
Buna-N O-Ring - 3mm Wide x 78mm ID - Pack of 25
Buna-N O-Ring - 3mm Wide x 78mm ID - Pack of 25
Brand USA Sealing
Item # AA1180
Mfr. Model # ZUSAH3X78
View Product Details
$16.00 / pack of 25

Expected to ship Tue. Apr 30
Buna-N O-Ring - 3.5mm Wide x 78mm ID - Pack of 5 3.5 mm 78 mm 85 mm
$7.18 / pack of 5
Buna-N O-Ring - 3.5mm Wide x 78mm ID - Pack of 5
Buna-N O-Ring - 3.5mm Wide x 78mm ID - Pack of 5
Brand USA Sealing
Item # AA1418
Mfr. Model # ZUSAH3.5X78
View Product Details
$7.18 / pack of 5

Expected to ship Mon. Jun 10
Buna-N O-Ring - 4mm Wide x 78mm ID - Pack of 10 4 mm 78 mm 86 mm
$14.83 / pack of 10
Buna-N O-Ring - 4mm Wide x 78mm ID - Pack of 10
Buna-N O-Ring - 4mm Wide x 78mm ID - Pack of 10
Brand USA Sealing
Item # AA1608
Mfr. Model # ZUSAH4X78
View Product Details
$14.83 / pack of 10

Expected to ship Wed. Jun 19
Buna-N O-Ring - 5mm Wide x 78mm ID - Pack of 5 5 mm 78 mm 88 mm
$11.25 / pack of 5
Buna-N O-Ring - 5mm Wide x 78mm ID - Pack of 5
Buna-N O-Ring - 5mm Wide x 78mm ID - Pack of 5
Brand USA Sealing
Item # AA1809
Mfr. Model # ZUSAH5X78
View Product Details
$11.25 / pack of 5

Expected to ship Tue. Apr 30
Buna-N O-Ring - 6mm Wide x 78mm ID - Pack of 2 6 mm 78 mm 90 mm
$10.00 / pack of 2
Buna-N O-Ring - 6mm Wide x 78mm ID - Pack of 2
Buna-N O-Ring - 6mm Wide x 78mm ID - Pack of 2
Brand USA Sealing
Item # AA2058
Mfr. Model # ZUSAH6X78
View Product Details
$10.00 / pack of 2

Expected to ship Mon. Jun 10
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  1. Inner Diameter - Actual
    78 mm
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Cross Section - Actual
  1. 2 mm 1 item
  2. 3 mm 1 item
  3. 3.5 mm 1 item
  4. 4 mm 1 item
  5. 5 mm 1 item
  6. 6 mm 1 item
Inner Diameter - Actual
  1. 0.056" 2 items
  2. 0.07" 2 items
  3. 0.174" 2 items
  4. 0.206" 2 items
  5. 0.208" 1 item
  6. 0.237" 2 items
  7. 0.239" 1 item
  8. 0.296" 1 item
  9. 0.299" 2 items
  10. 0.412" 2 items
  11. 0.421" 2 items
  12. 0.475" 2 items
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  14. 0.537" 2 items
  15. 0.546" 2 items
  16. 0.609" 2 items
  17. 0.612" 1 item
  18. 0.662" 2 items
  19. 0.671" 2 items
  20. 0.674" 1 item
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  25. 0.864" 1 item
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  27. 0.926" 1 item
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  29. 0.989" 2 items
  30. 1.037" 2 items
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  32. 1.051" 2 items
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  35. 1.162" 2 items
  36. 1.171" 1 item
  37. 1.174" 2 items
  38. 1.176" 2 items
  39. 1.225" 2 items
  40. 1.234" 1 item
  41. 1.237" 2 items
  42. 1.239" 2 items
  43. 1.287" 2 items
  44. 1.296" 1 item
  45. 1.299" 2 items
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  47. 1.421" 1 item
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  49. 1.674" 1 item
  50. 1.725" 1 item
  51. 1.85" 2 items
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  54. 1.925" 1 item
  55. 1.975" 2 items
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  57. 2.1" 2 items
  58. 2.225" 2 items
  59. 2.35" 2 items
  60. 2.475" 2 items
  61. 2.6" 2 items
  62. 2.612" 1 item
  63. 2.725" 2 items
  64. 2.737" 1 item
  65. 2.85" 2 items
  66. 2.862" 1 item
  67. 2.975" 2 items
  68. 3.1" 2 items
  69. 3.225" 2 items
  70. 3.35" 2 items
  71. 3.475" 2 items
  72. 3.484" 1 item
  73. 3.6" 2 items
  74. 3.725" 2 items
  75. 3.739" 1 item
  76. 3.85" 2 items
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  79. 4.1" 2 items
  80. 4.225" 2 items
  81. 4.35" 2 items
  82. 4.359" 1 item
  83. 4.475" 2 items
  84. 4.487" 1 item
  85. 4.6" 2 items
  86. 4.725" 2 items
  87. 4.739" 1 item
  88. 4.85" 2 items
  89. 4.975" 2 items
  90. 4.984" 1 item
  91. 4.987" 1 item
  92. 5.1" 2 items
  93. 5.225" 2 items
  94. 5.239" 1 item
  95. 5.35" 2 items
  96. 5.359" 1 item
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  110. 7.475" 3 items
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  112. 7.975" 2 items
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  115. 8.984" 1 item
  116. 9.234" 1 item
  117. 9.475" 2 items
  118. 9.487" 1 item
  119. 9.975" 2 items
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  138. 25.94" 2 items
  139. 1.25 mm 1 item
  140. 1.8 mm 4 items
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  282. 45.7 mm 1 item
  283. 45.84 mm 1 item
  284. 46 mm 9 items
  285. 46.2 mm 2 items
  286. 47 mm 7 items
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  288. 47.6 mm 2 items
  289. 48 mm 10 items
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  343. 84 mm 7 items
  344. 84.6 mm 1 item
  345. 85 mm 9 items
  346. 86 mm 7 items
  347. 87 mm 6 items
  348. 87.5 mm 1 item
  349. 88 mm 5 items
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  351. 90 mm 10 items
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  423. 167 mm 1 item
  424. 169.3 mm 1 item
  425. 169.5 mm 2 items
  426. 170 mm 6 items
  427. 174 mm 2 items
  428. 174.2 mm 1 item
  429. 175 mm 5 items
  430. 178 mm 1 item
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  433. 185 mm 4 items
  434. 188 mm 2 items
  435. 190 mm 6 items
  436. 193 mm 1 item
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  438. 194.3 mm 1 item
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  453. 225 mm 3 items
  454. 229.3 mm 1 item
  455. 230 mm 4 items
  456. 232 mm 1 item
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  459. 239.3 mm 1 item
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  461. 243 mm 2 items
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  471. 279.3 mm 1 item
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  475. 289.3 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. 82 mm 1 item
  2. 84 mm 1 item
  3. 85 mm 1 item
  4. 86 mm 1 item
  5. 88 mm 1 item
  6. 90 mm 1 item