Back-up rings for O-rings
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  • Back-up rings for O-rings

Back-up rings for O-rings

* Price on request *
Tax included

Back-up rings for O-rings, from 4.1 to 289.3 mm inside diameter and cross-sections from 1.6 to 6.99 mm. Choose the inside diameter and the thickness.

Cross-section: 2.00
Inner diameter: 9.00
Quantity
Product available with different options

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Ref. 1.3312.92

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Delivery in 1 to 5 working days in mainland Portugal (items in stock); Spain 3 working days, rest of the EU 5 working days. Times are estimates.

Shipping from €6.15 in Portugal, €7.38 in Spain and €24.60 in the rest of the EU; free from €100 + VAT in mainland Portugal, €150 + VAT in Spain and €400 + VAT in the rest of the EU. You can also collect from our shop in Leiria.

Returns within 14 days, by post.

Payment by Multibanco, MB WAY, card, Apple Pay, Google Pay or bank transfer.

Shipping costs

Technical guide: How to identify hydraulic seals: types, dimensions and materials

The back-up ring fits in the same groove as the O-ring, on the side away from the pressure (or on both sides if the pressure alternates). It stops the O-ring being forced into the gap between the parts when the pressure is high or the clearance is large, which is what cuts it.

  • Inside diameter: from 4.1 to 289.3 mm
  • Thickness, matching the O-ring cross-section: 1.6, 1.78, 2, 2.4, 2.62, 3, 3.53, 4, 4.5, 5.33, 5.7, 6 and 6.99 mm
  • The inch-based sizes (1.78, 2.62, 3.53, 5.33, 6.99) follow the AS 568 O-ring series; the others are metric
  • Rings are in NBR 90 or PTFE, depending on the size

Choose by the inside diameter and cross-section of the O-ring it supports. If you have the groove drawing, check there is width for both the O-ring and the ring.

1.3312.92

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All options for this item (292)

Prices include VAT at the legal rate

Description
Part number
Availability
Price
1.60 - 4.10
1.3312.4116
In stock
1.78 - 6.07
1.3312.607178
In stock
1.78 - 6.75
1.3312.675178
Last units
1.78 - 7.65
1.3312.765178
In stock
1.78 - 9.25
1.3312.925178
In stock
1.78 - 10.82
1.3312.1082178
In stock
1.78 - 11.11
1.3312.1111178
In stock
1.78 - 12.42
1.3312.1242178
In stock
1.78 - 14.00
1.3312.1400178
In stock
1.78 - 15.60
1.3312.1560178
In stock
1.78 - 17.17
1.3312.1717178
In stock
1.78 - 18.77
1.3312.1877178
In stock
1.78 - 20.35
1.3312.2035178
In stock
1.78 - 21.95
1.3312.2195178
In stock
1.78 - 25.12
1.3312.2512178
In stock
1.78 - 26.70
1.3312.2670178
On request
1.78 - 28.30
1.3312.2830178
In stock
1.78 - 29.87
1.3312.2987178
In stock
1.78 - 31.47
1.3312.3147178
In stock
1.78 - 37.82
1.3312.3782178
In stock
1.78 - 47.35
1.3312.4735178
In stock
2.00 - 9.00
1.3312.92
On request
2.00 - 14.00
1.3312.142
In stock
2.40 - 9.30
1.3312.9324
In stock
2.40 - 11.30
1.3312.11324
In stock
2.40 - 15.30
1.3312.15324
In stock
2.40 - 16.30
1.3312.16324
In stock
2.62 - 5.23
1.3312.523262
In stock
2.62 - 7.60
1.3312.760262
In stock
2.62 - 9.19
1.3312.919262
In stock
2.62 - 10.77
1.3312.1077262
In stock
2.62 - 11.91
1.3312.1191262
In stock
2.62 - 12.37
1.3312.1237262
In stock
2.62 - 13.94
1.3312.1394262
In stock
2.62 - 15.08
1.3312.1508262
In stock
2.62 - 15.54
1.3312.1554262
In stock
2.62 - 15.88
1.3312.1588262
In stock
2.62 - 17.12
1.3312.1712262
In stock
2.62 - 17.86
1.3312.1786262
In stock
2.62 - 18.72
1.3312.1872262
In stock
2.62 - 20.29
1.3312.2029262
Last units
2.62 - 20.63
1.3312.2063262
In stock
2.62 - 21.89
1.3312.2189262
In stock
2.62 - 23.47
1.3312.2347262
In stock
2.62 - 23.81
1.3312.2381262
Last units
2.62 - 25.07
1.3312.2507262
In stock
2.62 - 26.64
1.3312.2664262
In stock
2.62 - 28.24
1.3312.2824262
In stock
2.62 - 29.82
1.3312.2982262
In stock
2.62 - 31.42
1.3312.3142262
In stock
2.62 - 32.99
1.3312.3299262
In stock
2.62 - 34.60
1.3312.3460262
Last units
2.62 - 36.14
1.3312.3614262
Last units
2.62 - 37.77
1.3312.3777262
In stock
2.62 - 39.34
1.3312.3934262
In stock
2.62 - 40.95
1.3312.4095262
In stock
2.62 - 42.52
1.3312.4252262
In stock
2.62 - 44.12
1.3312.4412262
In stock
2.62 - 45.69
1.3312.4569262
In stock
2.62 - 47.30
1.3312.4730262
Last units
2.62 - 48.90
1.3312.4890262
In stock
2.62 - 50.47
1.3312.5047262
In stock
2.62 - 52.07
1.3312.5207262
In stock
2.62 - 53.65
1.3312.5365262
In stock
2.62 - 55.25
1.3312.5525262
In stock
2.62 - 56.82
1.3312.5682262
In stock
2.62 - 58.42
1.3312.5842262
Last units
2.62 - 60.00
1.3312.6000262
In stock
2.62 - 61.60
1.3312.6160262
In stock
2.62 - 63.17
1.3312.6317262
In stock
2.62 - 64.77
1.3312.6477262
In stock
2.62 - 66.35
1.3312.6635262
In stock
2.62 - 67.95
1.3312.6795262
In stock
2.62 - 69.52
1.3312.6952262
In stock
2.62 - 71.12
1.3312.7112262
In stock
2.62 - 71.12 B
1.3312.7112262PTFE
Last units
2.62 - 72.69
1.3312.7269262
In stock
2.62 - 75.87
1.3312.7587262
In stock
2.62 - 82.22
1.3312.8222262
In stock
2.62 - 88.57
1.3312.8857262
In stock
2.62 - 94.92
1.3312.9492262
In stock
2.62 - 113.97
1.3312.11397262
In stock
3.00 - 19.20
1.3312.1923
In stock
3.00 - 24.20
1.3312.2423
In stock
3.00 - 26.20
1.3312.2623
In stock
3.00 - 29.20
1.3312.2923
In stock
3.00 - 32.20
1.3312.3223
In stock
3.00 - 34.20
1.3312.3423
In stock
3.00 - 34.50
1.3312.3453
In stock
3.00 - 39.20
1.3312.3923
In stock
3.00 - 44.20
1.3312.4423
In stock
3.00 - 49.50
1.3312.4953
In stock
3.00 - 53.10
1.3312.5313
In stock
3.00 - 54.50
1.3312.5453
In stock
3.00 - 56.00
1.3312.563
On request
3.00 - 57.00
1.3312.5703
On request
3.00 - 59.50
1.3312.5953
In stock
3.00 - 63.00
1.3312.633
On request
3.00 - 64.50
1.3312.6453
In stock
3.00 - 69.50
1.3312.6953
In stock
3.00 - 74.60
1.3312.7463
In stock
3.00 - 75.00
1.3312.753
Last units
3.00 - 78.00
1.3312.783
In stock
3.00 - 79.50
1.3312.7953
In stock
3.00 - 80.00
1.3312.803
On request
3.00 - 84.50
1.3312.8453
In stock
3.00 - 85.00
1.3312.853PTFE
On request
3.00 - 89.50
1.3312.8953
In stock
3.00 - 94.50
1.3312.9453
In stock
3.00 - 95.00
1.3312.953
On request
3.00 - 98.00
1.3312.983
On request
3.00 - 99.50
1.3312.9953
In stock
3.00 - 104.50
1.3312.10453
In stock
3.00 - 109.00
1.3312.1093
On request
3.00 - 109.50
1.3312.10953
In stock
3.00 - 114.50
1.3312.11453
In stock
3.00 - 119.50
1.3312.11953
In stock
3.00 - 124.50
1.3312.12453
In stock
3.00 - 130.00
1.3312.1303
On request
3.00 - 143.33
1.3312.143333
On request
3.00 - 235.41
1.3312.N235413
On request
3.53 - 18.64
1.3312.1864353
In stock
3.53 - 20.22
1.3312.2022353
In stock
3.53 - 21.82
1.3312.2182353
In stock
3.53 - 23.40
1.3312.2340353
In stock
3.53 - 24.99
1.3312.2499353
Last units
3.53 - 25.80
1.3312.2580353
In stock
3.53 - 26.58
1.3312.2658353
In stock
3.53 - 28.17
1.3312.2817353
In stock
3.53 - 29.75
1.3312.2975353
In stock
3.53 - 31.34
1.3312.3134353
In stock
3.53 - 32.92
1.3312.3292353
In stock
3.53 - 34.52
1.3312.3452353
In stock
3.53 - 36.09
1.3312.3609353
In stock
3.53 - 37.69
1.3312.3769353
In stock
3.53 - 39.69
1.3312.3969353
In stock
3.53 - 40.87
1.3312.4087353
In stock
3.53 - 42.86
1.3312.4286353
In stock
3.53 - 44.04
1.3312.4404353
In stock
3.53 - 44.45
1.3312.4445353
Last units
3.53 - 46.04
1.3312.4604353
In stock
3.53 - 47.22
1.3312.4722353
In stock
3.53 - 49.21
1.3312.4921353
In stock
3.53 - 50.39
1.3312.5039353
In stock
3.53 - 52.39
1.3312.5239353
In stock
3.53 - 53.57
1.3312.5357353
In stock
3.53 - 55.56
1.3312.5556353
In stock
3.53 - 56.74
1.3312.5674353
In stock
3.53 - 57.15
1.3312.5715353
In stock
3.53 - 58.74
1.3312.5874353
Last units
3.53 - 59.92
1.3312.5992353
In stock
3.53 - 61.91
1.3312.6191353
In stock
3.53 - 63.09
1.3312.6309353
In stock
3.53 - 63.50
1.3312.635353
In stock
3.53 - 65.09
1.3312.6509353
In stock
3.53 - 66.27
1.3312.6627353
In stock
3.53 - 68.26
1.3312.6826353
In stock
3.53 - 69.44
1.3312.6944353
In stock
3.53 - 69.85
1.3312.6985353
In stock
3.53 - 71.44
1.3312.7144353
Last units
3.53 - 72.62
1.3312.7262353
In stock
3.53 - 73.03
1.3312.7303353
On request
3.53 - 74.61
1.3312.7461353
Last units
3.53 - 75.79
1.3312.7579353
In stock
3.53 - 78.97
1.3312.7897353
In stock
3.53 - 82.14
1.3312.8214353
In stock
3.53 - 85.32
1.3312.8532353
In stock
3.53 - 88.49
1.3312.8849353
In stock
3.53 - 91.67
1.3312.9167353
In stock
3.53 - 94.84
1.3312.9484353
In stock
3.53 - 98.02
1.3312.9802353
In stock
3.53 - 101.19
1.3312.10119353
Last units
3.53 - 104.37
1.3312.10437353
In stock
3.53 - 104.37 B
1.3312.P10437353
On request
3.53 - 107.54
1.3312.10754353
In stock
3.53 - 110.72
1.3312.11072353
In stock
3.53 - 113.89
1.3312.11389353
In stock
3.53 - 117.07
1.3312.11707353
In stock
3.53 - 120.24
1.3312.12024353
In stock
3.53 - 123.42
1.3312.12342353
In stock
3.53 - 126.59
1.3312.12659353
In stock
3.53 - 129.77
1.3312.12977353
In stock
3.53 - 132.94
1.3312.13294353
In stock
3.53 - 136.12
1.3312.13612353
In stock
3.53 - 139.29
1.3312.13929353
In stock
3.53 - 142.47
1.3312.14247353
In stock
3.53 - 145.64
1.3312.14564353
In stock
3.53 - 148.82
1.3312.14882353
In stock
3.53 - 151.99
1.3312.15199353
In stock
3.53 - 164.69
1.3312.16469353
In stock
3.53 - 171.04
1.3312.17104353
Last units
3.53 - 190.09
1.3312.19009353
In stock
3.53 - 234.54
1.3312.23454353
On request
4.00 - 24.00
1.3312.244
In stock
4.00 - 59.00
1.3312.594
In stock
4.00 - 69.00
1.3312.694
In stock
4.00 - 74.00
1.3312.744
In stock
4.00 - 79.00
1.3312.794
In stock
4.00 - 83.00
1.3312.834
In stock
4.00 - 118.00
1.3312.1184
In stock
4.50 - 42.00
1.3312.4245
In stock
5.30 - 140.00
1.3312.14053
In stock
5.30 - 150.00
1.3312.15053
In stock
5.33 - 37.47
1.3312.3747533
In stock
5.33 - 40.65
1.3312.4065533
In stock
5.33 - 43.82
1.3312.4382533
In stock
5.33 - 47.00
1.3312.4700533
In stock
5.33 - 50.16
1.3312.5016533
In stock
5.33 - 53.34
1.3312.5334533
In stock
5.33 - 56.52
1.3312.5652533
In stock
5.33 - 59.69
1.3312.5969533
In stock
5.33 - 62.87
1.3312.6287533
In stock
5.33 - 66.04
1.3312.6604533
In stock
5.33 - 69.22
1.3312.6922533
In stock
5.33 - 70.00
1.3312.708015
Last units
5.33 - 72.39
1.3312.7239533
In stock
5.33 - 74.63
1.3312.7463533
In stock
5.33 - 75.57
1.3312.7557533
In stock
5.33 - 78.74
1.3312.7874533
In stock
5.33 - 79.77
1.3312.7977533
Last units
5.33 - 81.92
1.3312.8192533
In stock
5.33 - 85.09
1.3312.8509533
In stock
5.33 - 88.27
1.3312.8827533
In stock
5.33 - 89.69
1.3312.8969533
In stock
5.33 - 91.44
1.3312.9144533
In stock
5.33 - 94.62
1.3312.9462533
In stock
5.33 - 97.79
1.3312.9779533
In stock
5.33 - 100.00
1.3312.10000533
Last units
5.33 - 100.97
1.3312.10097533
In stock
5.33 - 104.14
1.3312.10414533
In stock
5.33 - 107.32
1.3312.10732533
In stock
5.33 - 109.50
1.3312.10950533
In stock
5.33 - 110.50
1.3312.11050533
In stock
5.33 - 113.67
1.3312.11367533
In stock
5.33 - 116.84
1.3312.11684533
In stock
5.33 - 120.02
1.3312.12002533
In stock
5.33 - 123.80
1.3312.12380533
In stock
5.33 - 126.37
1.3312.12637533
In stock
5.33 - 129.54
1.3312.12954533
In stock
5.33 - 133.40
1.3312.13340533
In stock
5.33 - 135.90
1.3312.13590533
In stock
5.33 - 139.07
1.3312.13907533
In stock
5.33 - 142.24
1.3312.14224533
In stock
5.33 - 148.60
1.3312.14860533
Last units
5.33 - 151.77
1.3312.15177533
Last units
5.33 - 158.12
1.3312.15812533
In stock
5.33 - 164.47
1.3312.16447533
Last units
5.33 - 170.82
1.3312.17082533
Last units
5.33 - 177.17
1.3312.17717533
In stock
5.33 - 189.87
1.3312.18987533
In stock
5.33 - 208.92
1.3312.20892533
In stock
5.70 - 45.30
1.3312.45357
In stock
5.70 - 49.20
1.3312.49257
In stock
5.70 - 52.30
1.3312.52357
In stock
5.70 - 54.20
1.3312.54257
In stock
5.70 - 59.20
1.3312.59257
In stock
5.70 - 64.20
1.3312.64257
In stock
5.70 - 69.20
1.3312.69257
In stock
5.70 - 74.20
1.3312.74257
In stock
5.70 - 79.20
1.3312.79257
In stock
5.70 - 84.10
1.3312.84157
In stock
5.70 - 89.10
1.3312.89157
In stock
5.70 - 89.30
1.3312.89357
On request
5.70 - 94.10
1.3312.94157
In stock
5.70 - 99.10
1.3312.99157
In stock
5.70 - 104.10
1.3312.104157
In stock
5.70 - 109.10
1.3312.109157
In stock
5.70 - 114.30
1.3312.114357
In stock
5.70 - 119.30
1.3312.119357
In stock
5.70 - 124.30
1.3312.124357
In stock
5.70 - 129.30
1.3312.129357
In stock
5.70 - 134.30
1.3312.134357
In stock
5.70 - 139.30
1.3312.139357
In stock
5.70 - 144.30
1.3312.144357
In stock
5.70 - 149.30
1.3312.149357
In stock
5.70 - 229.20
1.3312.229257
On request
5.70 - 289.30
1.3312.290730019
On request
6.00 - 88.00
1.3312.886
In stock
6.99 - 113.67
1.3312.11367699
Last units
6.99 - 116.84
1.3312.11684699
Last units
6.99 - 123.20
1.3312.12320699
In stock
6.99 - 126.37
1.3312.12637699
In stock
6.99 - 132.72
1.3312.13272699
Last units
6.99 - 135.90
1.3312.13590699
In stock
6.99 - 139.07
1.3312.13907699
Last units
6.99 - 145.42
1.3312.14542699
Last units
6.99 - 155.60
1.3312.15560699
In stock
6.99 - 155.60 B
1.3312.1556699
In stock
6.99 - 166.70
1.3312.16670699
In stock
6.99 - 183.52
1.3312.18352699
In stock
6.99 - 189.87
1.3312.18987699
Last units
6.99 - 196.22
1.3312.19622699
In stock