Nitrile 90 Back-Up Rings NBR 90 BS309 To BS395

Nitrile 90 Back-Up Rings NBR 90 BS309 To BS395

£0.0442£7.5316

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
£0.0442£0.0389£0.0336£0.0287£0.0243

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

BS310BUCON9012.07X5.33MM
£0.0475£0.0418£0.0361£0.0309£0.0261

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

BS311BUCON9013.64X5.33MM
£0.0513£0.0451£0.0390£0.0333£0.0282

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

BS312BUCON9015.24X5.33MM
£0.0545£0.0480£0.0414£0.0354£0.0300

1800 in stock (Available on back order – alternative may be available, contact us for more details)

BS313BUCON9016.81X5.33MM
£0.0611£0.0538£0.0464£0.0397£0.0336

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

BS314BUCON9018.42X5.33MM
£0.0649£0.0571£0.0493£0.0422£0.0357

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

BS315BUCON9019.99X5.33MM
£0.0676£0.0595£0.0514£0.0439£0.0372

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

BS316BUCON9021.59X5.33MM
£0.0775£0.0682£0.0589£0.0504£0.0426

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

BS317BUCON9023.16X5.33MM
£0.0845£0.0744£0.0642£0.0549£0.0465

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

BS318BUCON9024.77X5.33MM
£0.0911£0.0802£0.0692£0.0592£0.0501

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

BS319BUCON9026.34X5.33MM
£0.0976£0.0859£0.0742£0.0634£0.0537

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

BS320BUCON9027.94X5.33MM
£0.1025£0.0902£0.0779£0.0666£0.0564

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

BS321BUCON9029.51X5.33MM
£0.1118£0.0984£0.0850£0.0727£0.0615

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

BS322BCON9031.12X5.33MM
£0.1222£0.1075£0.0929£0.0794£0.0672

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

BS323BUCON9032.69X5.33MM
£0.1358£0.1195£0.1032£0.0883£0.0747

1757 in stock (Available on back order – alternative may be available, contact us for more details)

BS324BUCON9034.29X5.33MM
£0.1522£0.1339£0.1157£0.0989£0.0837

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

BS325BUCON9037.47X5.33MM
£0.1636£0.1440£0.1243£0.1063£0.0900

1676 in stock (Available on back order – alternative may be available, contact us for more details)

BS326BUCON9040.64X5.33M
£0.1735£0.1527£0.1319£0.1128£0.0954

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

BS327BUCON9043.82X5.33MM
£0.1871£0.1646£0.1422£0.1216£0.1029

1900 in stock (Available on back order – alternative may be available, contact us for more details)

BS328BUCON9046.99X5.33MM
£0.2024£0.1781£0.1538£0.1316£0.1113

1426 in stock (Available on back order – alternative may be available, contact us for more details)

BS329BUCON9050.17X5.33MM
£0.2231£0.1963£0.1696£0.1450£0.1227

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

BS330BUCON9053.34X5.33MM
£0.2373£0.2088£0.1803£0.1542£0.1305

1975 in stock (Available on back order – alternative may be available, contact us for more details)

BS331BUCON9056.52X5.33MM
£0.2575£0.2266£0.1957£0.1674£0.1416

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

BS332BUCON9059.69X5.33MM
£0.2776£0.2443£0.2110£0.1804£0.1527

1151 in stock (Available on back order – alternative may be available, contact us for more details)

BS333BUCON9062.87X5.33MM
£0.2984£0.2626£0.2268£0.1940£0.1641

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

BS334BUCON9066.04X5.33MM
£0.3191£0.2808£0.2425£0.2074£0.1755

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

BS335BUCON9069.22X5.33MM
£0.3545£0.3120£0.2694£0.2304£0.1950

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

BS336BUCON9072.39X5.33MM
£0.3676£0.3235£0.2794£0.2389£0.2022

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

BS337BUCON9075.57X5.33MM
£0.3824£0.3365£0.2906£0.2486£0.2103

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

BS338BUCON9078.74X5.33MM
£0.4020£0.3538£0.3055£0.2613£0.2211

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

BS339BUCON9081.92X5.33MM
£0.4233£0.3725£0.3217£0.2751£0.2328

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

BS340BUCON9085.09X5.33MM
£0.4435£0.3903£0.3371£0.2883£0.2439

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

BS341BUCON9088.27X5.33MM
£0.4713£0.4147£0.3582£0.3063£0.2592

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

BS342BUCON9091.44X5.33MM
£0.4909£0.4320£0.3731£0.3191£0.2700

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

BS343BUCON9094.62X5.33MM
£0.5122£0.4507£0.3893£0.3329£0.2817

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

BS344BUCON9097.79X5.33MM
£0.5324£0.4685£0.4046£0.3461£0.2928

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

BS345BUCON90100.97X5.33MM
£0.5536£0.4872£0.4207£0.3598£0.3045

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

BS346BUCON90104.14X5.33MM
£0.6011£0.5290£0.4568£0.3907£0.3306

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

BS347BUCON90107.32X5.33MM
£0.6224£0.5477£0.4730£0.4046£0.3423

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

BS348BUCON90110.49X5.3MM
£0.6360£0.5597£0.4834£0.4134£0.3498

1493 in stock (Available on back order – alternative may be available, contact us for more details)

BS349BUCON90113.67X5.33MM
£0.6578£0.5789£0.4999£0.4276£0.3618

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

BS350BUCON90116.84X5.33MM
£0.7058£0.6211£0.5364£0.4588£0.3882

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

BS351BUCON90120.02X5.33MM
£0.7396£0.6508£0.5621£0.4807£0.4068

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

BS352BUCON90123.2X5.33MM
£0.7598£0.6686£0.5774£0.4939£0.4179

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

BS353BUCON90126.37X5.33MM
£0.7811£0.6874£0.5936£0.5077£0.4296

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

BS354BUCON90129.54X5.33MM
£0.8089£0.7118£0.6148£0.5258£0.4449

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

BS355BUCON90132.72X5.33MM
£0.8296£0.7300£0.6305£0.5392£0.4563

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

BS356BUCON90135.89X5.33MM
£0.8313£0.7315£0.6318£0.5403£0.4572

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

BS357BUCON90139.07X5.33MM
£0.8629£0.7594£0.6558£0.5609£0.4746

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

BS358BUCON90142.24X5.33MM
£0.8989£0.7910£0.6832£0.5843£0.4944

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

BS359BUCON90145.42X5.33MM
£0.9655£0.8496£0.7338£0.6276£0.5310

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

BS360BUCON90148.59X5.33MM
£1.0140£0.8923£0.7706£0.6591£0.5577

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

BS361BUCON90151.77X5.33MM
£1.0484£0.9226£0.7968£0.6815£0.5766

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

BS362BUCON90158.12X5.33MM
£1.0838£0.9537£0.8237£0.7045£0.5961

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

BS363BUCON90164.47X5.33MM
£1.1198£0.9854£0.8510£0.7279£0.6159

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

BS364BUCON90170.82X5.33MM
£1.1509£1.0128£0.8747£0.7481£0.6330

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

BS365BUCON90177.17X5.33MM
£1.1891£1.0464£0.9037£0.7729£0.6540

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

BS366BUCON90183.52X5.33MM
£1.2115£1.0661£0.9207£0.7875£0.6663

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

BS367BUCON90189.87X5.33MM
£1.2365£1.0881£0.9397£0.8037£0.6801

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

BS368BUCON90196.22X5.33MM
£1.2682£1.1160£0.9638£0.8243£0.6975

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

BS369BUCON90202.57X5.33MM
£1.2785£1.1251£0.9717£0.8310£0.7032

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

BS370BUCON90208.92X5.33MM
£1.3124£1.1549£0.9974£0.8531£0.7218

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

BS371BUCON90215.27X5.33MM
£1.3478£1.1861£1.0243£0.8761£0.7413

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

BS372BUCON90221.62X5.33MM
£1.3773£1.2120£1.0467£0.8952£0.7575

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

BS373BUCON90227.97X5.33MM
£1.4531£1.2787£1.1044£0.9445£0.7992

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

BS374BUCON90234.32X5.33MM
£1.5824£1.3925£1.2026£1.0286£0.8703

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

BS375BUCON90240.67X5.33MM
£1.6505£1.4524£1.2544£1.0728£0.9078

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

BS376BUCON90247.02X5.33MM
£1.7291£1.5216£1.3141£1.1239£0.9510

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

BS377BUCON90253.37X5.33MM
£1.9276£1.6963£1.4650£1.2529£1.0602

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

BS378BUCON90266.07X5.33MM
£1.9920£1.7530£1.5139£1.2948£1.0956

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

BS379BUCON90278.77X5.33MM
£2.0613£1.8139£1.5666£1.3398£1.1337

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

BS380BUCON90291.47X5.33MM
£2.2118£1.9464£1.6810£1.4377£1.2165

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

BS381BUCON90304.17X5.33MM
£2.3389£2.0582£1.7776£1.5203£1.2864

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

BS382BUCON90329.57X5.33MM
£2.6078£2.2949£1.9819£1.6951£1.4343

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

BS383BUCON90354.97X5.33MM
£2.9504£2.5964£2.2423£1.9178£1.6227

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

BS384BUCON90380.37X5.33MM
£3.1740£2.7931£2.4122£2.0631£1.7457

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

BS385BUCON90405.26X5.33MM
£3.4533£3.0389£2.6245£2.2446£1.8993

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

BS386BUCON90430.66X5.33MM
£3.6393£3.2026£2.7659£2.3655£2.0016

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

BS387BUCON90456.06X5.33MM
£3.8455£3.3840£2.9226£2.4996£2.1150

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

BS388BUCON90481.46X5.33MM
£4.1198£3.6254£3.1310£2.6779£2.2659

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

BS389BUCON90506.86X5.33MM
£4.6636£4.1040£3.5443£3.0313£2.5650

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

BS390BUCON90532.26X5.33MM
£5.1425£4.5254£3.9083£3.3426£2.8284

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

BS391BUCON90557.66X5.33MM
£5.8298£5.1302£4.4306£3.7894£3.2064

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

BS392BUCON90582.68X5.33MM
£6.4729£5.6962£4.9194£4.2074£3.5601

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

BS393BUCON90608.08X5.33MM
£6.8476£6.0259£5.2042£4.4509£3.7662

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

BS394BUCON90633.48X5.33MM
£7.1869£6.3245£5.4620£4.6715£3.9528

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

BS395BUCON90658.88X5.33MM
£7.5316£6.6278£5.7240£4.8955£4.1424

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

Eastern Seals menu