Eastern Seals UK - Supplier of Quality Sealing Products

NBR 90 Contoured Backup Rings BS309 to BS395 Cross Section 4.65mm

NBR 90 Contoured Backup Rings BS309 to BS395 Cross Section 4.65mm

£0.04£6.90

NBR 90 Contoured Backup Rings

Back up rings are commonly used with O-rings, lip seals, and as reciprocating shaft seals. They are also used for piping connections joining two different materials – typically one flexible and one rigid.

90 shore Nitrile (Buna-N) provides sufficient elasticity to allow stretching over the major diameter of a piston and then snapping back into the gland groove cut into the piston. NBR90 Backup rings offer sufficient hardness to resist extrusion of the softer elastomeric O-ring performing the actual sealing function against the high pressure liquid or gas.

ColourBlack
MaterialNBR (Nitrile) 90 shore
Back-up typeBritish Standard (imperial)
Maximum Temperature (°C)+120°C
Minimum Temperature (°C)-30°C

Please note minimum order quantities apply. Click the minus button button to add the minimum order quantity to your cart.

ES RefSize
Price per unit
1 - 4950 - 99100 - 499500 - *
Quantity
BS309BUCON90BS309BUCON90 11.43 x 4.65 x 1.93 mm BLACK
£0.04£0.04£0.03£0.03
BS310BUCON90BS310BUCON90 13.03 x 4.65 x 1.93 mm BLACK
£0.04£0.04£0.03£0.03
BS311BUCON90BS311BUCON90 14.61 x 4.65 x 1.93 mm BLACK
£0.05£0.04£0.04£0.03
BS312BUCON90BS312BUCON90 16.21 x 4.65 x 1.93 mm BLACK
£0.05£0.04£0.04£0.03
BS313BUCON90BS313BUCON90 17.78 x 4.65 x 1.93 mm BLACK
£0.06£0.05£0.05£0.04
BS314BUCON90BS314BUCON90 19.38 x 4.65 x 1.93 mm BLACK
£0.06£0.05£0.05£0.04
BS315BUCON90BS315BUCON90 20.96 x 4.65 x 1.93 mm BLACK
£0.06£0.05£0.05£0.04
BS316BUCON90BS316BUCON90 22.56 x 4.65 x 1.93 mm BLACK
£0.07£0.06£0.05£0.05
BS317BUCON90BS317BUCON90 24.13 x 4.65 x 1.93 mm BLACK
£0.08£0.07£0.06£0.05
BS318BUCON90BS318BUCON90 25.73 x 4.65 x 1.93 mm BLACK
£0.08£0.07£0.06£0.05
BS319BUCON90BS319BUCON90 27.31 x 4.65 x 1.93 mm BLACK
£0.09£0.08£0.07£0.06
BS320BUCON90BS320BUCON90 28.91 x 4.65 x 1.93 mm BLACK
£0.09£0.08£0.07£0.06
BS321BUCON90BS321BUCON90 30.48 x 4.65 x 1.93 mm BLACK
£0.10£0.09£0.08£0.07
BS322BUCON90BS322BUCON90 32.08 x 4.65 x 1.93 mm BLACK
£0.11£0.10£0.08£0.07
BS323BUCON90BS323BUCON90 33.43 x 4.65 x 1.93 mm BLACK
£0.12£0.11£0.09£0.08
BS324BUCON90BS324BUCON90 35.26 x 4.65 x 1.93 mm BLACK
£0.14£0.12£0.11£0.09
BS325BUCON90BS325BUCON90 38.43 x 4.65 x 1.93 mm BLACK
£0.15£0.13£0.11£0.10
BS326BUCON90BS326BUCON90 41.61 x 4.65 x 1.93 mm BLACK
£0.16£0.14£0.12£0.10
BS327BUCON90BS327BUCON90 44.78 x 4.65 x 1.93 mm BLACK
£0.17£0.15£0.13£0.11
BS328BUCON90BS328BUCON90 47.96 x 4.65 x 1.93 mm BLACK
£0.19£0.17£0.14£0.12
BS329BUCON90BS329BUCON90 51.13 x 4.65 x 1.93 mm BLACK
£0.20£0.18£0.15£0.13
BS330BUCON90BS330BUCON90 54.31 x 4.65 x 1.93 mm BLACK
£0.22£0.19£0.17£0.14
BS331BUCON90BS331BUCON90 57.61 x 4.65 x 1.93 mm BLACK
£0.24£0.21£0.18£0.16
BS332BUCON90BS332BUCON90 60.78 x 4.65 x 1.93 mm BLACK
£0.25£0.22£0.19£0.16
BS333BUCON90BS333BUCON90 63.96 x 4.65 x 1.93 mm BLACK
£0.27£0.24£0.21£0.18
BS334BUCON90BS334BUCON90 67.13 x 4.65 x 1.93 mm BLACK
£0.29£0.26£0.22£0.19
BS335BUCON90BS335BUCON90 70.31 x 4.65 x 1.93 mm BLACK
£0.33£0.29£0.25£0.21
BS336BUCON90BS336BUCON90 73.48 x 4.65 x 1.93 mm BLACK
£0.34£0.30£0.26£0.22
BS337BUCON90BS337BUCON90 76.66 x 4.65 x 1.93 mm BLACK
£0.35£0.31£0.27£0.23
BS338BUCON90BS338BUCON90 79.83 x 4.65 x 1.93 mm BLACK
£0.37£0.33£0.28£0.24
BS339BUCON90BS339BUCON90 83.13 x 4.65 x 1.93 mm BLACK
£0.39£0.34£0.30£0.25
BS340BUCON90BS340BUCON90 86.31 x 4.65 x 1.93 mm BLACK
£0.41£0.36£0.31£0.27
BS341BUCON90BS341BUCON90 89.48 x 4.65 x 1.93 mm BLACK
£0.43£0.38£0.33£0.28
BS342BUCON90BS342BUCON90 92.66 x 4.65 x 1.93 mm BLACK
£0.45£0.40£0.34£0.29
BS343BUCON90BS343BUCON90 95.83 x 4.65 x 1.93 mm BLACK
£0.47£0.41£0.36£0.31
BS344BUCON90BS344BUCON90 99.01 x 4.65 x 1.93 mm BLACK
£0.49£0.43£0.37£0.32
BS345BUCON90BS345BUCON90 102.31 x 4.65 x 1.93 mm BLACK
£0.51£0.45£0.39£0.33
BS346BUCON90BS346BUCON90 105.49 x 4.65 x 1.93 mm BLACK
£0.55£0.48£0.42£0.36
BS347BUCON90BS347BUCON90 108.66 x 4.65 x 1.93 mm BLACK
£0.57£0.50£0.43£0.37
BS348BUCON90BS348BUCON90 111.84 x 4.65 x 1.93 mm BLACK
£0.58£0.51£0.44£0.38
BS349BUCON90BS349BUCON90 115.01 x 4.65 x 1.93 mm BLACK
£0.60£0.53£0.46£0.39
BS350BUCON90BS350BUCON90 118.19 x 4.65 x 1.93 mm BLACK
£0.65£0.57£0.49£0.42
BS351BUCON90BS351BUCON90 121.36 x 4.65 x 1.93 mm BLACK
£0.68£0.60£0.52£0.44
BS352BUCON90BS352BUCON90 124.54 x 4.65 x 1.93 mm BLACK
£0.70£0.62£0.53£0.46
BS353BUCON90BS353BUCON90 127.71 x 4.65 x 1.93 mm BLACK
£0.72£0.63£0.55£0.47
BS354BUCON90BS354BUCON90 130.89 x 4.65 x 1.93 mm BLACK
£0.74£0.65£0.56£0.48
BS355BUCON90BS355BUCON90 134.06 x 4.65 x 1.93 mm BLACK
£0.76£0.67£0.58£0.49
BS356BUCON90BS356BUCON90 137.24 x 4.65 x 1.93 mm BLACK
£0.76£0.67£0.58£0.49
BS357BUCON90BS357BUCON90 140.41 x 4.65 x 1.93 mm BLACK
£0.79£0.70£0.60£0.51
BS358BUCON90BS358BUCON90 143.59 x 4.65 x 1.93 mm BLACK
£0.82£0.72£0.62£0.53
BS359BUCON90BS359BUCON90 146.76 x 4.65 x 1.93 mm BLACK
£0.89£0.78£0.68£0.58
BS360BUCON90BS360BUCON90 149.94 x 4.65 x 1.93 mm BLACK
£0.93£0.82£0.71£0.60
BS361BUCON90BS361BUCON90 153.11 x 4.65 x 1.93 mm BLACK
£0.96£0.84£0.73£0.62
BS362BUCON90BS362BUCON90 159.46 x 4.65 x 1.93 mm BLACK
£0.99£0.87£0.75£0.64
BS363BUCON90BS363BUCON90 165.81 x 4.65 x 1.93 mm BLACK
£1.03£0.91£0.78£0.67
BS364BUCON90BS364BUCON90 172.16 x 4.65 x 1.93 mm BLACK
£1.06£0.93£0.81£0.69
BS365BUCON90BS365BUCON90 178.51 x 4.65 x 1.93 mm BLACK
£1.09£0.96£0.83£0.71
BS366BUCON90BS366BUCON90 184.86 x 4.65 x 1.93 mm BLACK
£1.11£0.98£0.84£0.72
BS367BUCON90BS367BUCON90 191.21 x 4.65 x 1.93 mm BLACK
£1.13£0.99£0.86£0.73
BS368BUCON90BS368BUCON90 197.56 x 4.65 x 1.93 mm BLACK
£1.16£1.02£0.88£0.75
BS369BUCON90BS369BUCON90 203.91 x 4.65 x 1.93 mm BLACK
£1.17£1.03£0.89£0.76
BS370BUCON90BS370BUCON90 210.26 x 4.65 x 1.93 mm BLACK
£1.20£1.06£0.91£0.78
BS371BUCON90BS371BUCON90 216.61 x 4.65 x 1.93 mm BLACK
£1.24£1.09£0.94£0.81
BS372BUCON90BS372BUCON90 222.96 x 4.65 x 1.93 mm BLACK
£1.26£1.11£0.96£0.82
BS373BUCON90BS373BUCON90 229.31 x 4.65 x 1.93 mm BLACK
£1.33£1.17£1.01£0.86
BS374BUCON90BS374BUCON90 235.66 x 4.65 x 1.93 mm BLACK
£1.45£1.28£1.10£0.94
BS375BUCON90BS375BUCON90 242.01 x 4.65 x 1.93 mm BLACK
£1.51£1.33£1.15£0.98
BS376BUCON90BS376BUCON90 248.36 x 4.65 x 1.93 mm BLACK
£1.59£1.40£1.21£1.03
BS377BUCON90BS377BUCON90 254.71 x 4.65 x 1.93 mm BLACK
£1.77£1.56£1.35£1.15
BS378BUCON90BS378BUCON90 267.41 x 4.65 x 1.93 mm BLACK
£1.83£1.61£1.39£1.19
BS379BUCON90BS379BUCON90 280.11 x 4.65 x 1.93 mm BLACK
£1.89£1.66£1.44£1.23
BS380BUCON90BS380BUCON90 292.81 x 4.65 x 1.93 mm BLACK
£2.03£1.79£1.54£1.32
BS381BUCON90BS381BUCON90 305.51 x 4.65 x 1.93 mm BLACK
£2.14£1.88£1.63£1.39
BS382BUCON90BS382BUCON90 330.91 x 4.65 x 1.93 mm BLACK
£2.39£2.10£1.82£1.55
BS383BUCON90BS383BUCON90 356.31 x 4.65 x 1.93 mm BLACK
£2.70£2.38£2.05£1.76
BS384BUCON90BS384BUCON90 381.71 x 4.65 x 1.93 mm BLACK
£2.91£2.56£2.21£1.89
BS385BUCON90BS385BUCON90 406.6 x 4.65 x 1.93 mm BLACK
£3.17£2.79£2.41£2.06
BS386BUCON90BS386BUCON90 432 x 4.65 x 1.93 mm BLACK
£3.34£2.94£2.54£2.17
BS387BUCON90BS387BUCON90 457.4 x 4.65 x 1.93 mm BLACK
£3.53£3.11£2.68£2.29
BS388BUCON90BS388BUCON90 482.75 x 4.65 x 1.93 mm BLACK
£3.78£3.33£2.87£2.46
BS389BUCON90BS389BUCON90 508.15 x 4.65 x 1.93 mm BLACK
£4.28£3.77£3.25£2.78
BS390BUCON90BS390BUCON90 533.55 x 4.65 x 1.93 mm BLACK
£4.71£4.14£3.58£3.06
BS391BUCON90BS391BUCON90 558.95 x 4.65 x 1.93 mm BLACK
£5.34£4.70£4.06£3.47
BS392BUCON90BS392BUCON90 584.02 x 4.65 x 1.93 mm BLACK
£5.93£5.22£4.51£3.85
BS393BUCON90BS393BUCON90 609.42 x 4.65 x 1.93 mm BLACK
£6.28£5.53£4.77£4.08
BS394BUCON90BS394BUCON90 634.82 x 4.65 x 1.93 mm BLACK
£6.59£5.80£5.01£4.28
BS395BUCON90BS395BUCON90 660.22 x 4.65 x 1.93 mm BLACK
£6.90£6.07£5.24£4.49
SKU: BUCON90309-395 Category: Tags: , ,
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