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Buna-N O-Rings

12 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 - 1mm Wide x 18mm ID - Pack of 100 1 mm 18 mm 20 mm
$11.78 / pack of 100
Buna-N O-Ring - 1mm Wide x 18mm ID - Pack of 100
Buna-N O-Ring - 1mm Wide x 18mm ID - Pack of 100
Brand USA Sealing
Item # AA0416
Mfr. Model # ZUSAH1X18
View Product Details
Price
$11.78 / pack of 100

190 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
Buna-N O-Ring - 1.5mm Wide x 18mm ID - Pack of 100 1.5 mm 18 mm 21 mm
$12.10 / pack of 100
Buna-N O-Ring - 1.5mm Wide x 18mm ID - Pack of 100
Buna-N O-Ring - 1.5mm Wide x 18mm ID - Pack of 100
Brand USA Sealing
Item # AA0512
Mfr. Model # ZUSAH1.5X18
View Product Details
Price
$12.10 / pack of 100

132 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
Buna-N O-Ring - 2mm Wide x 18mm ID - Pack of 100 2 mm 18 mm 22 mm
$12.30 / pack of 100
Buna-N O-Ring - 2mm Wide x 18mm ID - Pack of 100
Buna-N O-Ring - 2mm Wide x 18mm ID - Pack of 100
Brand USA Sealing
Item # AA0705
Mfr. Model # ZUSAH2X18
View Product Details
Price
$12.30 / pack of 100

381 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 18mm ID - Pack of 100 2.5 mm 18 mm 23 mm
$13.50 / pack of 100
Buna-N O-Ring - 2.5mm Wide x 18mm ID - Pack of 100
Buna-N O-Ring - 2.5mm Wide x 18mm ID - Pack of 100
Brand USA Sealing
Item # AA0937
Mfr. Model # ZUSAH2.5X18
View Product Details
Price
$13.50 / pack of 100

210 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Sep 12
Buna-N O-Ring - 2.7mm Wide x 18mm ID - Pack of 25 2.7 mm 18 mm 20.7 mm
$6.43 / pack of 25
Buna-N O-Ring - 2.7mm Wide x 18mm ID - Pack of 25
Buna-N O-Ring - 2.7mm Wide x 18mm ID - Pack of 25
Brand USA Sealing
Item # AA1056
Mfr. Model # ZUSAH2.7X18
View Product Details
Price
$6.43 / pack of 25

22 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
Buna-N O-Ring - 3mm Wide x 18mm ID - Pack of 100 3 mm 18 mm 24 mm
$14.58 / pack of 100
Buna-N O-Ring - 3mm Wide x 18mm ID - Pack of 100
Buna-N O-Ring - 3mm Wide x 18mm ID - Pack of 100
Brand USA Sealing
Item # AA1088
Mfr. Model # ZUSAH3X18
View Product Details
Price
$14.58 / pack of 100

Estimated to ship Fri. Jun 20
Buna-N O-Ring - 3.5mm Wide x 18mm ID - Pack of 100 3.5 mm 18 mm 25 mm
$16.20 / pack of 100
Buna-N O-Ring - 3.5mm Wide x 18mm ID - Pack of 100
Buna-N O-Ring - 3.5mm Wide x 18mm ID - Pack of 100
Brand USA Sealing
Item # AA1334
Mfr. Model # ZUSAH3.5X18
View Product Details
Price
$16.20 / pack of 100

Estimated to ship Fri. Jun 20
Buna-N O-Ring - 3.55mm Wide x 18mm ID - Pack of 25 3.55 mm 18 mm 25.1 mm
$7.98 / pack of 25
Buna-N O-Ring - 3.55mm Wide x 18mm ID - Pack of 25
Buna-N O-Ring - 3.55mm Wide x 18mm ID - Pack of 25
Brand USA Sealing
Item # AA1470
Mfr. Model # ZUSAH3.55X18
View Product Details
Price
$7.98 / pack of 25

26 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
Buna-N O-Ring - 4mm Wide x 18mm ID - Pack of 50 4 mm 18 mm 26 mm
$12.63 / pack of 50
Buna-N O-Ring - 4mm Wide x 18mm ID - Pack of 50
Buna-N O-Ring - 4mm Wide x 18mm ID - Pack of 50
Brand USA Sealing
Item # AA1550
Mfr. Model # ZUSAH4X18
View Product Details
Price
$12.63 / pack of 50

5 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 18mm ID - Pack of 10 4.5 mm 18 mm 27 mm
$8.70 / pack of 10
Buna-N O-Ring - 4.5mm Wide x 18mm ID - Pack of 10
Buna-N O-Ring - 4.5mm Wide x 18mm ID - Pack of 10
Brand USA Sealing
Item # AA1704
Mfr. Model # ZUSAH4.5X18
View Product Details
Price
$8.70 / pack of 10

Estimated to ship Fri. Jun 20
Buna-N O-Ring - 5mm Wide x 18mm ID - Pack of 25 5 mm 18 mm 28 mm
$8.30 / pack of 25
Buna-N O-Ring - 5mm Wide x 18mm ID - Pack of 25
Buna-N O-Ring - 5mm Wide x 18mm ID - Pack of 25
Brand USA Sealing
Item # AA1754
Mfr. Model # ZUSAH5X18
View Product Details
Price
$8.30 / pack of 25

11 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
Buna-N O-Ring - 6mm Wide x 18mm ID - Pack of 10 6 mm 18 mm 30 mm
$11.23 / pack of 10
Buna-N O-Ring - 6mm Wide x 18mm ID - Pack of 10
Buna-N O-Ring - 6mm Wide x 18mm ID - Pack of 10
Brand USA Sealing
Item # AA2019
Mfr. Model # ZUSAH6X18
View Product Details
Price
$11.23 / pack of 10

7 units in stock. Estimated to ship Mon. May 12 Need more? Estimated to ship Fri. Jun 20
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Cross Section - Actual
  1. 1 mm 1 item
  2. 1.5 mm 1 item
  3. 2 mm 1 item
  4. 2.5 mm 1 item
  5. 2.7 mm 1 item
  6. 3 mm 1 item
  7. 3.5 mm 1 item
  8. 3.55 mm 1 item
  9. 4 mm 1 item
  10. 4.5 mm 1 item
  11. 5 mm 1 item
  12. 6 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
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  21. 1.171" 1 item
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  23. 1.239" 1 item
  24. 1.296" 1 item
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  29. 1.674" 1 item
  30. 1.725" 1 item
  31. 1.85" 2 items
  32. 1.859" 1 item
  33. 1.862" 1 item
  34. 1.925" 1 item
  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
  42. 2.6" 2 items
  43. 2.612" 1 item
  44. 2.725" 2 items
  45. 2.737" 1 item
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  47. 2.862" 1 item
  48. 2.975" 2 items
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  50. 3.225" 2 items
  51. 3.35" 2 items
  52. 3.475" 2 items
  53. 3.484" 1 item
  54. 3.6" 2 items
  55. 3.725" 2 items
  56. 3.739" 1 item
  57. 3.85" 2 items
  58. 3.975" 2 items
  59. 3.987" 1 item
  60. 4.1" 2 items
  61. 4.225" 2 items
  62. 4.35" 2 items
  63. 4.359" 1 item
  64. 4.475" 2 items
  65. 4.487" 1 item
  66. 4.489" 1 item
  67. 4.6" 2 items
  68. 4.725" 2 items
  69. 4.739" 1 item
  70. 4.85" 2 items
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  74. 5.1" 2 items
  75. 5.225" 2 items
  76. 5.239" 1 item
  77. 5.35" 2 items
  78. 5.359" 1 item
  79. 5.475" 2 items
  80. 5.6" 2 items
  81. 5.725" 2 items
  82. 5.739" 1 item
  83. 5.85" 2 items
  84. 5.975" 2 items
  85. 5.984" 1 item
  86. 5.987" 1 item
  87. 6.225" 2 items
  88. 6.239" 1 item
  89. 6.475" 2 items
  90. 6.725" 2 items
  91. 6.975" 2 items
  92. 7.225" 2 items
  93. 7.475" 3 items
  94. 7.725" 1 item
  95. 7.737" 1 item
  96. 7.975" 2 items
  97. 8.237" 1 item
  98. 8.475" 2 items
  99. 8.975" 2 items
  100. 8.984" 1 item
  101. 9.234" 1 item
  102. 9.475" 2 items
  103. 9.487" 1 item
  104. 9.975" 2 items
  105. 9.984" 1 item
  106. 10.475" 2 items
  107. 10.975" 2 items
  108. 11.475" 2 items
  109. 11.975" 2 items
  110. 12.975" 2 items
  111. 13.975" 2 items
  112. 14.975" 2 items
  113. 15.955" 3 items
  114. 16.955" 3 items
  115. 17.955" 3 items
  116. 18.455" 1 item
  117. 18.955" 2 items
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  120. 21.955" 2 items
  121. 22.94" 2 items
  122. 23.94" 2 items
  123. 24.94" 2 items
  124. 25.94" 2 items
  125. 1.25 mm 1 item
  126. 1.8 mm 4 items
  127. 2 mm 4 items
  128. 2.5 mm 6 items
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  131. 3 mm 5 items
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  135. 4 mm 7 items
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  152. 8 mm 10 items
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  156. 8.73 mm 1 item
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  158. 9 mm 9 items
  159. 9.3 mm 1 item
  160. 9.5 mm 7 items
  161. 9.75 mm 1 item
  162. 9.8 mm 2 items
  163. 10 mm 10 items
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  166. 11 mm 9 items
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  170. 11.91 mm 2 items
  171. 12 mm 9 items
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  184. 15.1 mm 2 items
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  186. 15.88 mm 1 item
  187. 16 mm 13 items
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  191. 17 mm 11 items
  192. 17.5 mm 5 items
  193. 17.86 mm 1 item
  194. 18 mm 12 items
  195. 18.3 mm 1 item
  196. 18.5 mm 5 items
  197. 19 mm 11 items
  198. 19.15 mm 1 item
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  205. 21 mm 9 items
  206. 21.3 mm 2 items
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  218. 25 mm 12 items
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  230. 29.2 mm 2 items
  231. 29.5 mm 3 items
  232. 30 mm 11 items
  233. 30.5 mm 2 items
  234. 30.7 mm 1 item
  235. 31 mm 8 items
  236. 31.5 mm 4 items
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  239. 32 mm 11 items
  240. 32.5 mm 6 items
  241. 33 mm 9 items
  242. 33.5 mm 4 items
  243. 34 mm 8 items
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  261. 41 mm 9 items
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  267. 42.2 mm 1 item
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  270. 43.7 mm 3 items
  271. 44 mm 10 items
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  275. 45.7 mm 1 item
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  278. 46.2 mm 2 items
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  280. 47.5 mm 2 items
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  282. 48 mm 10 items
  283. 48.7 mm 2 items
  284. 49 mm 8 items
  285. 49.5 mm 1 item
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  288. 51 mm 6 items
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  305. 61.5 mm 2 items
  306. 61.6 mm 2 items
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  308. 62.6 mm 1 item
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  311. 64.6 mm 2 items
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  313. 66 mm 8 items
  314. 66.6 mm 1 item
  315. 67 mm 7 items
  316. 68 mm 8 items
  317. 68.26 mm 1 item
  318. 69 mm 6 items
  319. 70 mm 10 items
  320. 71 mm 5 items
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  322. 73 mm 7 items
  323. 74 mm 7 items
  324. 74.2 mm 1 item
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  328. 77 mm 5 items
  329. 77.5 mm 2 items
  330. 78 mm 6 items
  331. 79 mm 6 items
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  342. 87 mm 6 items
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  346. 89.6 mm 1 item
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  359. 100 mm 11 items
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  370. 109.5 mm 1 item
  371. 109.6 mm 1 item
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  397. 136 mm 4 items
  398. 137 mm 2 items
  399. 138 mm 3 items
  400. 139.5 mm 1 item
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  403. 144 mm 2 items
  404. 144.5 mm 1 item
  405. 144.6 mm 1 item
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  407. 145.29 mm 1 item
  408. 146 mm 2 items
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  410. 149.5 mm 3 items
  411. 150 mm 7 items
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  418. 162 mm 1 item
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  420. 165 mm 5 items
  421. 167 mm 1 item
  422. 169.3 mm 1 item
  423. 169.5 mm 2 items
  424. 170 mm 6 items
  425. 174 mm 2 items
  426. 174.2 mm 1 item
  427. 175 mm 5 items
  428. 178 mm 1 item
  429. 179 mm 1 item
  430. 180 mm 6 items
  431. 185 mm 4 items
  432. 188 mm 2 items
  433. 190 mm 6 items
  434. 193 mm 1 item
  435. 194 mm 2 items
  436. 194.3 mm 1 item
  437. 195 mm 7 items
  438. 199.3 mm 1 item
  439. 200 mm 8 items
  440. 203 mm 2 items
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  442. 206 mm 2 items
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  446. 212 mm 2 items
  447. 214 mm 1 item
  448. 215 mm 2 items
  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
  458. 240 mm 3 items
  459. 243 mm 2 items
  460. 245 mm 2 items
  461. 250 mm 5 items
  462. 255 mm 2 items
  463. 258 mm 2 items
  464. 259.5 mm 1 item
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  466. 265 mm 5 items
  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
  472. 279.5 mm 1 item
  473. 280 mm 3 items
  474. 285 mm 2 items
  475. 289.3 mm 1 item
  476. 290 mm 2 items
  477. 294.5 mm 1 item
  478. 300 mm 4 items
  479. 305 mm 2 items
  480. 307 mm 2 items
  481. 310 mm 2 items
  482. 315 mm 2 items
  483. 319.5 mm 1 item
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  485. 325 mm 2 items
  486. 330 mm 1 item
  487. 335 mm 2 items
  488. 339.5 mm 1 item
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  490. 345 mm 3 items
  491. 355 mm 2 items
  492. 360 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
  498. 400 mm 2 items
  499. 487 mm 1 item
  500. 630 mm 1 item
Outer Diameter - Actual
  1. 20 mm 1 item
  2. 20.7 mm 1 item
  3. 21 mm 1 item
  4. 22 mm 1 item
  5. 23 mm 1 item
  6. 24 mm 1 item
  7. 25 mm 1 item
  8. 25.1 mm 1 item
  9. 26 mm 1 item
  10. 27 mm 1 item
  11. 28 mm 1 item
  12. 30 mm 1 item