Nitrile 90 Back-Up Rings NBR 90 BS309 To BS395

Nitrile 90 Back-Up Rings NBR 90 BS309 To BS395

£0.0575£9.7911

Back-up rings should generally be used for dynamic applications over 100 bar, and static applications around 950 bar. Each application can vary, therefore it is essential to use this as a general guideline only

Traditionally PTFE has been used but in recent years, contoured elastomer rings have been developed and are now widely used. Eastern Seals supplies a wide range of back-up ring profiles and materials to complement each seal type and to suit every application. We hold large stocks of Contoured rings in both Nitrile and Viton®.

pdf download Product Sheet – Back-Up Rings

ES RefSize
Price per unit
1 - 100101 - 250251 - 500501 - 10001001 - *
Quantity
BS309BUCON9010.46X5.33MM
£0.0575£0.0506£0.0437£0.0373£0.0316

2269 in stock (Available on back order – alternative may be available, contact us for more details)

BS310BUCON9012.07X5.33MM
£0.0618£0.0543£0.0469£0.0401£0.0340

8976 in stock (Available on back order – alternative may be available, contact us for more details)

BS311BUCON9013.64X5.33MM
£0.0667£0.0587£0.0507£0.0433£0.0367

2800 in stock (Available on back order – alternative may be available, contact us for more details)

BS312BUCON9015.24X5.33MM
£0.0709£0.0623£0.0538£0.0461£0.0390

1780 in stock (Available on back order – alternative may be available, contact us for more details)

BS313BUCON9016.81X5.33MM
£0.0794£0.0699£0.0604£0.0516£0.0437

1586 in stock (Available on back order – alternative may be available, contact us for more details)

BS314BUCON9018.42X5.33MM
£0.0844£0.0742£0.0641£0.0548£0.0464

1600 in stock (Available on back order – alternative may be available, contact us for more details)

BS315BUCON9019.99X5.33MM
£0.0879£0.0773£0.0668£0.0571£0.0483

1363 in stock (Available on back order – alternative may be available, contact us for more details)

BS316BUCON9021.59X5.33MM
£0.1008£0.0887£0.0766£0.0655£0.0554

1208 in stock (Available on back order – alternative may be available, contact us for more details)

BS317BUCON9023.16X5.33MM
£0.1099£0.0967£0.0835£0.0714£0.0604

1190 in stock (Available on back order – alternative may be available, contact us for more details)

BS318BUCON9024.77X5.33MM
£0.1184£0.1042£0.0900£0.0770£0.0651

2156 in stock (Available on back order – alternative may be available, contact us for more details)

BS319BUCON9026.34X5.33MM
£0.1269£0.1117£0.0964£0.0825£0.0698

1370 in stock (Available on back order – alternative may be available, contact us for more details)

BS320BUCON9027.94X5.33MM
£0.1333£0.1173£0.1013£0.0866£0.0733

180 in stock (Available on back order – alternative may be available, contact us for more details)

BS321BUCON9029.51X5.33MM
£0.1453£0.1279£0.1105£0.0945£0.0799

728 in stock (Available on back order – alternative may be available, contact us for more details)

BS322BCON9031.12X5.33MM
£0.1589£0.1398£0.1207£0.1033£0.0874

Available on back order – alternative may be available, contact us for more details

BS323BUCON9032.69X5.33MM
£0.1765£0.1554£0.1342£0.1148£0.0971

1747 in stock (Available on back order – alternative may be available, contact us for more details)

BS324BUCON9034.29X5.33MM
£0.1979£0.1741£0.1504£0.1286£0.1088

80 in stock (Available on back order – alternative may be available, contact us for more details)

BS325BUCON9037.47X5.33MM
£0.2127£0.1872£0.1616£0.1382£0.1170

1566 in stock (Available on back order – alternative may be available, contact us for more details)

BS326BUCON9040.64X5.33M
£0.2256£0.1985£0.1714£0.1466£0.1241

64 in stock (Available on back order – alternative may be available, contact us for more details)

BS327BUCON9043.82X5.33MM
£0.2432£0.2140£0.1849£0.1581£0.1338

1890 in stock (Available on back order – alternative may be available, contact us for more details)

BS328BUCON9046.99X5.33MM
£0.2631£0.2315£0.2000£0.1710£0.1447

2426 in stock (Available on back order – alternative may be available, contact us for more details)

BS329BUCON9050.17X5.33MM
£0.2900£0.2552£0.2204£0.1885£0.1595

259 in stock (Available on back order – alternative may be available, contact us for more details)

BS330BUCON9053.34X5.33MM
£0.3085£0.2715£0.2345£0.2005£0.1697

1960 in stock (Available on back order – alternative may be available, contact us for more details)

BS331BUCON9056.52X5.33MM
£0.3348£0.2946£0.2544£0.2176£0.1841

142 in stock (Available on back order – alternative may be available, contact us for more details)

BS332BUCON9059.69X5.33MM
£0.3609£0.3176£0.2743£0.2346£0.1985

837 in stock (Available on back order – alternative may be available, contact us for more details)

BS333BUCON9062.87X5.33MM
£0.3879£0.3414£0.2948£0.2521£0.2134

270 in stock (Available on back order – alternative may be available, contact us for more details)

BS334BUCON9066.04X5.33MM
£0.4148£0.3651£0.3153£0.2696£0.2282

691 in stock (Available on back order – alternative may be available, contact us for more details)

BS335BUCON9069.22X5.33MM
£0.4609£0.4055£0.3502£0.2996£0.2535

221 in stock (Available on back order – alternative may be available, contact us for more details)

BS336BUCON9072.39X5.33MM
£0.4779£0.4205£0.3632£0.3106£0.2628

Available on back order – alternative may be available, contact us for more details

BS337BUCON9075.57X5.33MM
£0.4971£0.4375£0.3778£0.3231£0.2734

370 in stock (Available on back order – alternative may be available, contact us for more details)

BS338BUCON9078.74X5.33MM
£0.5226£0.4599£0.3972£0.3397£0.2874

100 in stock (Available on back order – alternative may be available, contact us for more details)

BS339BUCON9081.92X5.33MM
£0.5503£0.4843£0.4182£0.3577£0.3027

865 in stock (Available on back order – alternative may be available, contact us for more details)

BS340BUCON9085.09X5.33MM
£0.5766£0.5074£0.4382£0.3748£0.3171

1003 in stock (Available on back order – alternative may be available, contact us for more details)

BS341BUCON9088.27X5.33MM
£0.6127£0.5392£0.4656£0.3982£0.3370

310 in stock (Available on back order – alternative may be available, contact us for more details)

BS342BUCON9091.44X5.33MM
£0.6382£0.5616£0.4850£0.4148£0.3510

1540 in stock (Available on back order – alternative may be available, contact us for more details)

BS343BUCON9094.62X5.33MM
£0.6659£0.5860£0.5061£0.4328£0.3662

198 in stock (Available on back order – alternative may be available, contact us for more details)

BS344BUCON9097.79X5.33MM
£0.6921£0.6091£0.5260£0.4499£0.3807

484 in stock (Available on back order – alternative may be available, contact us for more details)

BS345BUCON90100.97X5.33MM
£0.7197£0.6333£0.5470£0.4678£0.3958

432 in stock (Available on back order – alternative may be available, contact us for more details)

BS346BUCON90104.14X5.33MM
£0.7814£0.6877£0.5939£0.5079£0.4298

435 in stock (Available on back order – alternative may be available, contact us for more details)

BS347BUCON90107.32X5.33MM
£0.8091£0.7120£0.6149£0.5259£0.4450

416 in stock (Available on back order – alternative may be available, contact us for more details)

BS348BUCON90110.49X5.3MM
£0.8268£0.7276£0.6284£0.5374£0.4547

843 in stock (Available on back order – alternative may be available, contact us for more details)

BS349BUCON90113.67X5.33MM
£0.8551£0.7525£0.6499£0.5558£0.4703

69 in stock (Available on back order – alternative may be available, contact us for more details)

BS350BUCON90116.84X5.33MM
£0.9175£0.8074£0.6973£0.5964£0.5046

390 in stock (Available on back order – alternative may be available, contact us for more details)

BS351BUCON90120.02X5.33MM
£0.9615£0.8461£0.7307£0.6250£0.5288

81 in stock (Available on back order – alternative may be available, contact us for more details)

BS352BUCON90123.2X5.33MM
£0.9877£0.8692£0.7507£0.6420£0.5433

1 in stock (Available on back order – alternative may be available, contact us for more details)

BS353BUCON90126.37X5.33MM
£1.0154£0.8936£0.7717£0.6600£0.5585

780 in stock (Available on back order – alternative may be available, contact us for more details)

BS354BUCON90129.54X5.33MM
£1.0516£0.9254£0.7992£0.6835£0.5784

336 in stock (Available on back order – alternative may be available, contact us for more details)

BS355BUCON90132.72X5.33MM
£1.0785£0.9491£0.8196£0.7010£0.5932

255 in stock (Available on back order – alternative may be available, contact us for more details)

BS356BUCON90135.89X5.33MM
£1.0807£0.9510£0.8213£0.7024£0.5944

284 in stock (Available on back order – alternative may be available, contact us for more details)

BS357BUCON90139.07X5.33MM
£1.1218£0.9872£0.8525£0.7292£0.6170

93 in stock (Available on back order – alternative may be available, contact us for more details)

BS358BUCON90142.24X5.33MM
£1.1686£1.0283£0.8881£0.7596£0.6427

104 in stock (Available on back order – alternative may be available, contact us for more details)

BS359BUCON90145.42X5.33MM
£1.2552£1.1045£0.9539£0.8158£0.6903

620 in stock (Available on back order – alternative may be available, contact us for more details)

BS360BUCON90148.59X5.33MM
£1.3182£1.1600£1.0018£0.8568£0.7250

128 in stock (Available on back order – alternative may be available, contact us for more details)

BS361BUCON90151.77X5.33MM
£1.3629£1.1994£1.0358£0.8859£0.7496

143 in stock (Available on back order – alternative may be available, contact us for more details)

BS362BUCON90158.12X5.33MM
£1.4089£1.2399£1.0708£0.9158£0.7749

81 in stock (Available on back order – alternative may be available, contact us for more details)

BS363BUCON90164.47X5.33MM
£1.4557£1.2811£1.1064£0.9462£0.8007

660 in stock (Available on back order – alternative may be available, contact us for more details)

BS364BUCON90170.82X5.33MM
£1.4962£1.3166£1.1371£0.9725£0.8229

656 in stock (Available on back order – alternative may be available, contact us for more details)

BS365BUCON90177.17X5.33MM
£1.5458£1.3603£1.1748£1.0048£0.8502

160 in stock (Available on back order – alternative may be available, contact us for more details)

BS366BUCON90183.52X5.33MM
£1.5750£1.3860£1.1970£1.0237£0.8662

104 in stock (Available on back order – alternative may be available, contact us for more details)

BS367BUCON90189.87X5.33MM
£1.6075£1.4146£1.2217£1.0448£0.8841

65 in stock (Available on back order – alternative may be available, contact us for more details)

BS368BUCON90196.22X5.33MM
£1.6487£1.4508£1.2530£1.0716£0.9068

491 in stock (Available on back order – alternative may be available, contact us for more details)

BS369BUCON90202.57X5.33MM
£1.6621£1.4626£1.2632£1.0803£0.9141

395 in stock (Available on back order – alternative may be available, contact us for more details)

BS370BUCON90208.92X5.33MM
£1.7061£1.5014£1.2967£1.1090£0.9384

Available on back order – alternative may be available, contact us for more details

BS371BUCON90215.27X5.33MM
£1.7521£1.5419£1.3316£1.1389£0.9637

258 in stock (Available on back order – alternative may be available, contact us for more details)

BS372BUCON90221.62X5.33MM
£1.7905£1.5756£1.3608£1.1638£0.9848

96 in stock (Available on back order – alternative may be available, contact us for more details)

BS373BUCON90227.97X5.33MM
£1.8890£1.6623£1.4357£1.2279£1.0390

71 in stock (Available on back order – alternative may be available, contact us for more details)

BS374BUCON90234.32X5.33MM
£2.0571£1.8103£1.5634£1.3371£1.1314

91 in stock (Available on back order – alternative may be available, contact us for more details)

BS375BUCON90240.67X5.33MM
£2.1457£1.8882£1.6307£1.3947£1.1801

100 in stock (Available on back order – alternative may be available, contact us for more details)

BS376BUCON90247.02X5.33MM
£2.2478£1.9781£1.7084£1.4611£1.2363

244 in stock (Available on back order – alternative may be available, contact us for more details)

BS377BUCON90253.37X5.33MM
£2.5059£2.2052£1.9045£1.6288£1.3782

Available on back order – alternative may be available, contact us for more details

BS378BUCON90266.07X5.33MM
£2.5896£2.2788£1.9681£1.6832£1.4243

16 in stock (Available on back order – alternative may be available, contact us for more details)

BS379BUCON90278.77X5.33MM
£2.6797£2.3581£2.0366£1.7418£1.4738

127 in stock (Available on back order – alternative may be available, contact us for more details)

BS380BUCON90291.47X5.33MM
£2.8753£2.5303£2.1853£1.8690£1.5814

35 in stock (Available on back order – alternative may be available, contact us for more details)

BS381BUCON90304.17X5.33MM
£3.0406£2.6757£2.3108£1.9764£1.6723

100 in stock (Available on back order – alternative may be available, contact us for more details)

BS382BUCON90329.57X5.33MM
£3.3901£2.9833£2.5765£2.2036£1.8646

50 in stock (Available on back order – alternative may be available, contact us for more details)

BS383BUCON90354.97X5.33MM
£3.8355£3.3753£2.9150£2.4931£2.1095

9 in stock (Available on back order – alternative may be available, contact us for more details)

BS384BUCON90380.37X5.33MM
£4.1262£3.6311£3.1359£2.6820£2.2694

342 in stock (Available on back order – alternative may be available, contact us for more details)

BS385BUCON90405.26X5.33MM
£4.4893£3.9506£3.4119£2.9180£2.4691

30 in stock (Available on back order – alternative may be available, contact us for more details)

BS386BUCON90430.66X5.33MM
£4.7311£4.1634£3.5956£3.0752£2.6021

30 in stock (Available on back order – alternative may be available, contact us for more details)

BS387BUCON90456.06X5.33MM
£4.9992£4.3993£3.7994£3.2494£2.7495

284 in stock (Available on back order – alternative may be available, contact us for more details)

BS388BUCON90481.46X5.33MM
£5.3557£4.7131£4.0704£3.4812£2.9457

35 in stock (Available on back order – alternative may be available, contact us for more details)

BS389BUCON90506.86X5.33MM
£6.0627£5.3352£4.6076£3.9407£3.3345

Available on back order – alternative may be available, contact us for more details

BS390BUCON90532.26X5.33MM
£6.6853£5.8830£5.0808£4.3454£3.6769

14 in stock (Available on back order – alternative may be available, contact us for more details)

BS391BUCON90557.66X5.33MM
£7.5787£6.6693£5.7598£4.9262£4.1683

30 in stock (Available on back order – alternative may be available, contact us for more details)

BS392BUCON90582.68X5.33MM
£8.4148£7.4050£6.3952£5.4696£4.6281

22 in stock (Available on back order – alternative may be available, contact us for more details)

BS393BUCON90608.08X5.33MM
£8.9019£7.8337£6.7654£5.7862£4.8960

85 in stock (Available on back order – alternative may be available, contact us for more details)

BS394BUCON90633.48X5.33MM
£9.3430£8.2218£7.1007£6.0729£5.1386

15 in stock (Available on back order – alternative may be available, contact us for more details)

BS395BUCON90658.88X5.33MM
£9.7911£8.6162£7.4412£6.3642£5.3851

14 in stock (Available on back order – alternative may be available, contact us for more details)

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