Nitrile 90 Back-Up Rings NBR 90 BS309 To BS395

£0.0772£13.1592

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®.

Product Information

  Back-Up Rings
ES Refsize
Price per unit
1 - 100101 - 250251 - 500501 - 10001001 - *
Quantity
BS309BUCON9010.46X5.33MM
£0.0772£0.0679£0.0587£0.0502£0.0425

2269 in stock (can be backordered)

BS310BUCON9012.07X5.33MM
£0.0830£0.0730£0.0631£0.0540£0.0457

8976 in stock (can be backordered)

BS311BUCON9013.64X5.33MM
£0.0896£0.0788£0.0681£0.0582£0.0493

2800 in stock (can be backordered)

BS312BUCON9015.24X5.33MM
£0.0952£0.0838£0.0724£0.0619£0.0524

1780 in stock (can be backordered)

BS313BUCON9016.81X5.33MM
£0.1068£0.0940£0.0812£0.0694£0.0587

1586 in stock (can be backordered)

BS314BUCON9018.42X5.33MM
£0.1134£0.0998£0.0862£0.0737£0.0624

1600 in stock (can be backordered)

BS315BUCON9019.99X5.33MM
£0.1181£0.1039£0.0898£0.0768£0.0650

1363 in stock (can be backordered)

BS316BUCON9021.59X5.33MM
£0.1354£0.1192£0.1029£0.0880£0.0745

1208 in stock (can be backordered)

BS317BUCON9023.16X5.33MM
£0.1476£0.1299£0.1122£0.0959£0.0812

1190 in stock (can be backordered)

BS318BUCON9024.77X5.33MM
£0.1592£0.1401£0.1210£0.1035£0.0876

1906 in stock (can be backordered)

BS319BUCON9026.34X5.33MM
£0.1705£0.1500£0.1296£0.1108£0.0938

1370 in stock (can be backordered)

BS320BUCON9027.94X5.33MM
£0.1791£0.1576£0.1361£0.1164£0.0985

1680 in stock (can be backordered)

BS321BUCON9029.51X5.33MM
£0.1953£0.1719£0.1484£0.1269£0.1074

728 in stock (can be backordered)

BS322BCON9031.12X5.33MM
£0.2135£0.1879£0.1623£0.1388£0.1174

Available on backorder

BS323BUCON9032.69X5.33MM
£0.2373£0.2088£0.1803£0.1542£0.1305

1747 in stock (can be backordered)

BS324BUCON9034.29X5.33MM
£0.2659£0.2340£0.2021£0.1728£0.1462

80 in stock (can be backordered)

BS325BUCON9037.47X5.33MM
£0.2858£0.2515£0.2172£0.1858£0.1572

1466 in stock (can be backordered)

BS326BUCON9040.64X5.33M
£0.3031£0.2667£0.2304£0.1970£0.1667

1264 in stock (can be backordered)

BS327BUCON9043.82X5.33MM
£0.3269£0.2877£0.2484£0.2125£0.1798

1890 in stock (can be backordered)

BS328BUCON9046.99X5.33MM
£0.3536£0.3112£0.2687£0.2298£0.1945

3326 in stock (can be backordered)

BS329BUCON9050.17X5.33MM
£0.3898£0.3430£0.2962£0.2534£0.2144

617 in stock (can be backordered)

BS330BUCON9053.34X5.33MM
£0.4146£0.3648£0.3151£0.2695£0.2280

1930 in stock (can be backordered)

BS331BUCON9056.52X5.33MM
£0.4499£0.3959£0.3419£0.2924£0.2474

342 in stock (can be backordered)

BS332BUCON9059.69X5.33MM
£0.4850£0.4268£0.3686£0.3153£0.2668

487 in stock (can be backordered)

BS333BUCON9062.87X5.33MM
£0.5214£0.4588£0.3963£0.3389£0.2868

835 in stock (can be backordered)

BS334BUCON9066.04X5.33MM
£0.5575£0.4906£0.4237£0.3624£0.3066

Available on backorder

BS335BUCON9069.22X5.33MM
£0.6194£0.5451£0.4707£0.4026£0.3407

117 in stock (can be backordered)

BS336BUCON9072.39X5.33MM
£0.6423£0.5652£0.4881£0.4175£0.3533

375 in stock (can be backordered)

BS337BUCON9075.57X5.33MM
£0.6681£0.5879£0.5078£0.4343£0.3675

200 in stock (can be backordered)

BS338BUCON9078.74X5.33MM
£0.7024£0.6181£0.5338£0.4566£0.3863

Available on backorder

BS339BUCON9081.92X5.33MM
£0.7396£0.6508£0.5621£0.4807£0.4068

835 in stock (can be backordered)

BS340BUCON9085.09X5.33MM
£0.7749£0.6819£0.5889£0.5037£0.4262

78 in stock (can be backordered)

BS341BUCON9088.27X5.33MM
£0.8235£0.7247£0.6259£0.5353£0.4529

2290 in stock (can be backordered)

BS342BUCON9091.44X5.33MM
£0.8577£0.7548£0.6519£0.5575£0.4717

2860 in stock (can be backordered)

BS343BUCON9094.62X5.33MM
£0.8949£0.7875£0.6801£0.5817£0.4922

81 in stock (can be backordered)

BS344BUCON9097.79X5.33MM
£0.9302£0.8186£0.7070£0.6046£0.5116

911 in stock (can be backordered)

BS345BUCON90100.97X5.33MM
£0.9672£0.8511£0.7351£0.6287£0.5320

782 in stock (can be backordered)

BS346BUCON90104.14X5.33MM
£1.0502£0.9242£0.7982£0.6826£0.5776

8 in stock (can be backordered)

BS347BUCON90107.32X5.33MM
£1.0875£0.9570£0.8265£0.7069£0.5981

245 in stock (can be backordered)

BS348BUCON90110.49X5.3MM
£1.1112£0.9779£0.8445£0.7223£0.6112

2443 in stock (can be backordered)

BS349BUCON90113.67X5.33MM
£1.1493£1.0114£0.8735£0.7470£0.6321

Available on backorder

BS350BUCON90116.84X5.33MM
£1.2332£1.0852£0.9372£0.8016£0.6783

420 in stock (can be backordered)

BS351BUCON90120.02X5.33MM
£1.2922£1.1371£0.9821£0.8399£0.7107

50 in stock (can be backordered)

BS352BUCON90123.2X5.33MM
£1.3275£1.1682£1.0089£0.8629£0.7301

201 in stock (can be backordered)

BS353BUCON90126.37X5.33MM
£1.3647£1.2009£1.0372£0.8871£0.7506

760 in stock (can be backordered)

BS354BUCON90129.54X5.33MM
£1.4133£1.2437£1.0741£0.9186£0.7773

211 in stock (can be backordered)

BS355BUCON90132.72X5.33MM
£1.4495£1.2756£1.1016£0.9422£0.7972

255 in stock (can be backordered)

BS356BUCON90135.89X5.33MM
£1.4524£1.2781£1.1038£0.9441£0.7988

284 in stock (can be backordered)

BS357BUCON90139.07X5.33MM
£1.5077£1.3268£1.1459£0.9800£0.8292

533 in stock (can be backordered)

BS358BUCON90142.24X5.33MM
£1.5706£1.3821£1.1937£1.0209£0.8638

4 in stock (can be backordered)

BS359BUCON90145.42X5.33MM
£1.6869£1.4845£1.2820£1.0965£0.9278

2120 in stock (can be backordered)

BS360BUCON90148.59X5.33MM
£1.7717£1.5591£1.3465£1.1516£0.9744

178 in stock (can be backordered)

BS361BUCON90151.77X5.33MM
£1.8318£1.6120£1.3922£1.1907£1.0075

443 in stock (can be backordered)

BS362BUCON90158.12X5.33MM
£1.8936£1.6664£1.4391£1.2308£1.0415

236 in stock (can be backordered)

BS363BUCON90164.47X5.33MM
£1.9565£1.7217£1.4869£1.2717£1.0761

448 in stock (can be backordered)

BS364BUCON90170.82X5.33MM
£2.0109£1.7696£1.5283£1.3071£1.1060

606 in stock (can be backordered)

BS365BUCON90177.17X5.33MM
£2.0776£1.8283£1.5790£1.3504£1.1427

140 in stock (can be backordered)

BS366BUCON90183.52X5.33MM
£2.1167£1.8627£1.6087£1.3759£1.1642

4 in stock (can be backordered)

BS367BUCON90189.87X5.33MM
£2.1604£1.9012£1.6419£1.4043£1.1882

195 in stock (can be backordered)

BS368BUCON90196.22X5.33MM
£2.2158£1.9499£1.6840£1.4403£1.2187

486 in stock (can be backordered)

BS369BUCON90202.57X5.33MM
£2.2338£1.9657£1.6977£1.4520£1.2286

395 in stock (can be backordered)

BS370BUCON90208.92X5.33MM
£2.2930£2.0178£1.7427£1.4905£1.2612

110 in stock (can be backordered)

BS371BUCON90215.27X5.33MM
£2.3549£2.0723£1.7897£1.5307£1.2952

198 in stock (can be backordered)

BS372BUCON90221.62X5.33MM
£2.4064£2.1176£1.8289£1.5642£1.3235

29 in stock (can be backordered)

BS373BUCON90227.97X5.33MM
£2.5389£2.2342£1.9296£1.6503£1.3964

106 in stock (can be backordered)

BS374BUCON90234.32X5.33MM
£2.7648£2.4330£2.1012£1.7971£1.5206

171 in stock (can be backordered)

BS375BUCON90240.67X5.33MM
£2.8838£2.5377£2.1917£1.8745£1.5861

80 in stock (can be backordered)

BS376BUCON90247.02X5.33MM
£3.0211£2.6586£2.2960£1.9637£1.6616

237 in stock (can be backordered)

BS377BUCON90253.37X5.33MM
£3.3679£2.9638£2.5596£2.1891£1.8523

20 in stock (can be backordered)

BS378BUCON90266.07X5.33MM
£3.4804£3.0628£2.6451£2.2623£1.9142

456 in stock (can be backordered)

BS379BUCON90278.77X5.33MM
£3.6015£3.1693£2.7371£2.3410£1.9808

77 in stock (can be backordered)

BS380BUCON90291.47X5.33MM
£3.8645£3.4008£2.9370£2.5119£2.1255

35 in stock (can be backordered)

BS381BUCON90304.17X5.33MM
£4.0865£3.5961£3.1057£2.6562£2.2476

98 in stock (can be backordered)

BS382BUCON90329.57X5.33MM
£4.5563£4.0095£3.4628£2.9616£2.5060

50 in stock (can be backordered)

BS383BUCON90354.97X5.33MM
£5.1549£4.5363£3.9177£3.3507£2.8352

9 in stock (can be backordered)

BS384BUCON90380.37X5.33MM
£5.5456£4.8801£4.2147£3.6046£3.0501

342 in stock (can be backordered)

BS385BUCON90405.26X5.33MM
£6.0336£5.3096£4.5855£3.9218£3.3185

30 in stock (can be backordered)

BS386BUCON90430.66X5.33MM
£6.3586£5.5956£4.8325£4.1331£3.4972

30 in stock (can be backordered)

BS387BUCON90456.06X5.33MM
£6.7189£5.9126£5.1064£4.3673£3.6954

284 in stock (can be backordered)

BS388BUCON90481.46X5.33MM
£7.1981£6.3343£5.4706£4.6788£3.9590

35 in stock (can be backordered)

BS389BUCON90506.86X5.33MM
£8.1482£7.1704£6.1926£5.2963£4.4815

Available on backorder

BS390BUCON90532.26X5.33MM
£8.9850£7.9068£6.8286£5.8403£4.9418

5 in stock (can be backordered)

BS391BUCON90557.66X5.33MM
£10.1858£8.9635£7.7412£6.6208£5.6022

30 in stock (can be backordered)

BS392BUCON90582.68X5.33MM
£11.3095£9.9524£8.5952£7.3512£6.2202

22 in stock (can be backordered)

BS393BUCON90608.08X5.33MM
£11.9641£10.5284£9.0927£7.7767£6.5803

85 in stock (can be backordered)

BS394BUCON90633.48X5.33MM
£12.5570£11.0502£9.5433£8.1621£6.9064

15 in stock (can be backordered)

BS395BUCON90658.88X5.33MM
£13.1592£11.5801£10.0010£8.5535£7.2376

14 in stock (can be backordered)

REQUEST A
CALL BACK

If you have any queries or would like any more information, don’t hesitate to get in touch.

Contact