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    Home / Stock items / Sealing rings / O-rings

    O-rings

    O-rings in stock in sizes from an inside diameter below 1 mm up to hundreds of millimetres – more than 9,400 items. They are made to DIN 3770, DIN 3771 and ISO 3601; we stock metric and inch cross-sections 1.78, 2.62, 3.53, 5.33 and 6.99 mm.

    Materials: NBR 70 and 90 ShA for oils and fuels, FPM (Viton) 70 and 80 ShA for higher temperatures, EPDM 70 for water and steam including FDA grades, silicone MVQ, HNBR, polyurethane PU, CR, PTFE and FFKM. An O-ring is designated by inside diameter x cross-section, material and hardness – e.g. 25 x 2.5 NBR 70. Items in stock are shipped immediately, delivery within 1–2 days.

    Frequently asked questions

    How do I measure an O-ring correctly?

    For an O-ring the inside diameter and the cross-section (thickness) matter, the outside diameter is not stated. Look for the size in the form inside diameter x cross-section, for example 25 x 2.5 NBR 70. An old ring may be deformed after use, so it helps to also measure the groove or the shaft the ring sits on. Typical cross-sections of AS568 inch sizes are 1.78, 2.62, 3.53, 5.33 and 6.99 mm.

    Which O-ring material should I choose?

    NBR is the standard for oils and fuels, roughly from −30 to +100 °C. Choose FPM (Viton) for higher temperatures up to roughly +200 °C and for many chemicals. EPDM suits water and steam, roughly up to +130 °C (peroxide-cured up to +150 °C), but it is not resistant to mineral oils or ordinary grease. Silicone MVQ withstands roughly −50 to +175 °C. For aggressive media we also stock HNBR and FFKM.

    What does hardness 70 or 90 Shore A mean?

    The number after the material is the hardness in Shore A. Hardness 70 is the standard for general use, harder 90 Shore A O-rings are chosen for higher pressures and smaller gaps where a softer ring could be extruded. We mainly stock NBR 70 and NBR 90 and FPM 70 and 80. When replacing a ring, it is safest to keep the hardness of the original one.

    Do you have O-rings for the food industry?

    Yes, we stock O-rings in EPDM 70 peroxide and silicone MVQ 70 marked FDA, some items also BfR. You will find them by the FDA marking in the product name or with the material filter in the category. Silicone rings are available for example in red or transparent. Always assess compliance with regulations for a specific use according to the requirements of your operation.

    How fast can you deliver O-rings?

    We stock over 9,400 O-rings to DIN 3770 and ISO 3601 in metric and inch sizes. O-rings in stock are shipped immediately and delivery takes 1–2 days. Current availability is shown directly for each size, and you can filter the category by inside diameter, cross-section and material. If you cannot find the size you need, send us the designation and we will check whether we can supply it.

    Product sorting

    50 items total

    List of products

    120181 o krouzek 96 x 3 fpm 70 din 3770 eu origin
    O-ring 96 x 3 FPM 70, DIN 3770 EU origin
    Stock (27 pcs)
    €5,31 excl. VAT
    €6,43

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON031587
    O-ring 930 x 5 FPM 70 DIN 3770
    O-ring 930 x 5 FPM 70 DIN 3770
    Stock (2 pcs)
    €66,26 excl. VAT
    €80,18

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040661
    565744 o krouzek 9 3 x 2 4 fpm 70 din 3770
    O-ring 9.3 x 2.4 FPM 70, DIN 3770
    Stock (444 pcs)
    €0,31 excl. VAT
    €0,38

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040574
    529621 o krouzek 85 x 3 fpm 70 din 3770
    O-ring 85 x 3 FPM 70, DIN 3770
    Stock (9 pcs)
    €2,72 excl. VAT
    €3,29

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON039793
    235157 o krouzek 840 x 8 4 fpm 70 din 3770 eu origin
    O-ring 840 x 8.4 FPM 70, DIN 3770, EU origin
    Stock (2 pcs)
    €166,76 excl. VAT
    €201,78

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON039058
    235481 o krouzek 763 x 8 4 fpm 70 zelene din 3770 eu origin
    O-ring 763 x 8.4 FPM 70 green, DIN 3770, EU origin
    Stock (6 pcs)
    €151,60 excl. VAT
    €183,44

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON039166
    125140 o krouzek 720 x 7 fpm 70 james walker oror3162366
    O-ring 720 x 7 FPM 70, James Walker, OROR3162366
    Stock (5 pcs)
    €168 excl. VAT
    €203,28

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON027993
    108676 o krouzek 7 52 x 3 53 fpm 70 din 3770 eu origin
    O-ring 7.52 x 3.53 FPM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,98 excl. VAT
    €1,18

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON027426
    117787 o krouzek 62 x 2 5 fpm 70 din 3770 eu origin
    O-ring 62 x 2.5 FPM 70, DIN 3770 EU origin
    Stock (5 pcs)
    €3,62 excl. VAT
    €4,38

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON026000
    117583 o krouzek 60 x 1 5 fpm 70 din 3770 eu origin
    O-ring 60 x 1.5 FPM 70, DIN 3770 EU origin
    Stock (3 pcs)
    €2,44 excl. VAT
    €2,95

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON025484
    562480 o krouzek 6 x 1 5 fpm 70 din 3770
    O-ring 6 x 1.5 FPM 70, DIN 3770
    On order – within 3 weeks
    €0,10 excl. VAT
    €0,12

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040192
    529660 o krouzek 59 92 x 3 53 fpm 70 din 3770
    O-ring 59.92 x 3.53 FPM 70, DIN 3770
    On order – within 3 weeks
    €1,55 excl. VAT
    €1,88

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON039806
    117490 o krouzek 59 x 1 5 fpm 70 din 3770 eu origin
    O-ring 59 x 1.5 FPM 70, DIN 3770 EU origin
    Stock (13 pcs)
    €2,90 excl. VAT
    €3,51

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON025171
    232548 1 o krouzek 52 5 x 3 53 fpm 70 brown din 3770
    O-ring 52.5 x 3.53 FPM 70 brown, DIN 3770
    On order – within 3 weeks
    €1,31 excl. VAT
    €1,59

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON038526
    125038 o krouzek 510 x 12 fpm 70 din 3770 eu origin
    O-ring 510 x 12 FPM 70, DIN 3770 EU origin
    Stock (2 pcs)
    €292,24 excl. VAT
    €353,61

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON023422
    560440 o krouzek 450 x 5 fpm 70 iso 3601
    O-ring 450 x 5 FPM 70, ISO 3601
    Stock (9 pcs)
    €14,88 excl. VAT
    €18,01

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040082
    124903 o krouzek 440 x 6 fpm 70 din 3770 eu origin
    O-ring 440 x 6 FPM 70, DIN 3770 EU origin
    Stock (1 pcs)
    €53,44 excl. VAT
    €64,66

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON021325
    115762 o krouzek 42 x 5 fpm 70 din 3770 eu origin
    O-ring 42 x 5 FPM 70, DIN 3770 EU origin
    Stock (1 pcs)
    €4,31 excl. VAT
    €5,22

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON020825
    115483 o krouzek 40 x 3 15 fpm 70 din 3770 eu origin
    O-ring 40 x 3.15 FPM 70, DIN 3770 EU origin
    Stock (2 pcs)
    €8,33 excl. VAT
    €10,08

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON020113
    107728 o krouzek 4 x 1 fpm 70 din 3770 eu origin
    O-ring 4 x 1 FPM 70, DIN 3770 EU origin
    Stock (53 pcs)
    €0,44 excl. VAT
    €0,53

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON020259
    232443 1 o krouzek 38 x 6 fpm 70 brown din 3770
    O-ring 38 x 6 FPM 70 brown, DIN 3770
    On order – within 3 weeks
    €2,23 excl. VAT
    €2,70

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON038491
    115201 o krouzek 37 82 x 1 78 fpm 70 din 3770 eu origin
    O-ring 37.82 x 1.78 FPM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €1,14 excl. VAT
    €1,38

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON018670
    565705 o krouzek 36 x 1 5 fpm 70 brown din 3770
    O-ring 36 x 1.5 FPM 70 brown, DIN 3770
    On order – within 3 weeks
    €0,52 excl. VAT
    €0,63

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040561
    114667 o krouzek 34 5 x 3 fpm 70 din 3770 eu origin
    O-ring 34.5 x 3 FPM 70, DIN 3770 EU origin
    Stock (41 pcs)
    €2,02 excl. VAT
    €2,44

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON017453
    114019 o krouzek 30 x 4 fpm 70 din 3770 eu origin
    O-ring 30 x 4 FPM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €2,15 excl. VAT
    €2,60

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON015854
    107698 o krouzek 3 8 x 1 5 fpm 70 din 3770 eu origin
    O-ring 3.8 x 1.5 FPM 70, DIN 3770 EU origin
    Stock (80 pcs)
    €0,35 excl. VAT
    €0,42

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON015548
    107659 o krouzek 3 6 x 1 6 fpm 70 din 3770 eu origin
    O-ring 3.6 x 1.6 FPM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €2,48 excl. VAT
    €3

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON015490
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 25 x 3.55 FPM 70, DIN 3770 EU origin
    Stock (4 pcs)
    €1,36 excl. VAT
    €1,65

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON041375
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 25 x 2.5 FPM 70, DIN 3770 EU origin
    Stock (65 pcs)
    €0,83 excl. VAT
    €1,01

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON041019
    112795 o krouzek 24 x 2 5 fpm 70 din 3770 eu origin
    O-ring 24 x 2.5 FPM 70, DIN 3770 EU origin
    Stock (2 pcs)
    €1,21 excl. VAT
    €1,47

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON012542
    232218 1 o krouzek 22 6 x 1 78 fpm 70 din 3770
    O-ring 22.6 x 1.78 FPM 70, DIN 3770
    Stock (7 pcs)
    €4,79 excl. VAT
    €5,79

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON038416
    565732 o krouzek 21 x 1 fpm 70 din 3770
    O-ring 21 x 1 FPM 70, DIN 3770
    Stock (150 pcs)
    €0,23 excl. VAT
    €0,28

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040570
    565741 o krouzek 20 x 3 5 fpm 70 din 3770
    O-ring 20 x 3.5 FPM 70, DIN 3770
    On order – within 3 weeks
    €0,69 excl. VAT
    €0,84

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040573
    107398 o krouzek 2 5 x 1 2 fpm 70 din 3770 eu origin
    O-ring 2.5 x 1.2 FPM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,50 excl. VAT
    €0,61

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON009458
    107362 o krouzek 2 2 x 1 fpm 70 din 3770 eu origin
    O-ring 2.2 x 1 FPM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,74 excl. VAT
    €0,90

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON009403
    565708 o krouzek 190 x 2 5 fpm 70 brown din 3770
    O-ring 190 x 2.5 FPM 70 brown, DIN 3770
    On order – within 3 weeks
    €5,62 excl. VAT
    €6,80

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040562
    233025 1 o krouzek 183 7 x 3 53 fpm 70 din 3770
    O-ring 183.7 x 3.53 FPM 70, DIN 3770
    Stock (6 pcs)
    €18,32 excl. VAT
    €22,17

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON038685
    111487 o krouzek 18 x 3 fpm 70 din 3770 eu origin
    O-ring 18 x 3 FPM 70, DIN 3770 EU origin
    Stock (2 pcs)
    €0,86 excl. VAT
    €1,04

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON008357
    111097 o krouzek 16 5 x 1 5 fpm 70 din 3770 eu origin
    O-ring 16.5 x 1.5 FPM 70, DIN 3770 EU origin
    Stock (80 pcs)
    €0,61 excl. VAT
    €0,74

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON006583
    565738 o krouzek 155 x 5 fpm 70 din 3770
    O-ring 155 x 5 FPM 70, DIN 3770
    Stock (1 pcs)
    €8,12 excl. VAT
    €9,83

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040572
    565735 o krouzek 130 x 4 fpm 70 din 3770
    O-ring 130 x 4 FPM 70, DIN 3770
    Stock (8 pcs)
    €4 excl. VAT
    €4,84

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040571
    110311 o krouzek 13 1 x 1 6 fpm 70 din 3770 eu origin
    O-ring 13.1 x 1.6 FPM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,53 excl. VAT
    €0,64

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON003733
    562483 o krouzek 13 x 4 fpm 70 din 3770
    O-ring 13 x 4 FPM 70, DIN 3770
    Stock (44 pcs)
    €0,46 excl. VAT
    €0,56

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON040193
    110056 o krouzek 12 1 x 1 6 fpm 70 din 3770 eu origin
    O-ring 12.1 x 1.6 FPM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €41 076,20 excl. VAT
    €49 702,20

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON002614
    110041 o krouzek 12 x 5 fpm 70 din 3770 eu origin
    O-ring 12 x 5 FPM 70, DIN 3770 EU origin
    Stock (6 pcs)
    €2,03 excl. VAT
    €2,46

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON003371
    228415 o krouzek 119 x 1 5 fpm 70 din 3770 eu origin
    O-ring 119 x 1.5 FPM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €6,91 excl. VAT
    €8,36

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON002581
    235154 o krouzek 1100 x 12 fpm 70 din 3770 eu origin
    O-ring 1100 x 12 FPM 70, DIN 3770, EU origin
    Stock (4 pcs)
    €515,42 excl. VAT
    €623,66

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON039057
    109870 o krouzek 11 91 x 2 62 fpm 70 din 3770 eu origin
    O-ring 11.91 x 2.62 FPM 70, DIN 3770 EU origin
    Stock (9 pcs)
    €1,22 excl. VAT
    €1,48

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON001561
    107311 o krouzek 1 8 x 1 25 fpm 70 din 3770 eu origin
    O-ring 1.8 x 1.25 FPM 70, DIN 3770 EU origin
    Stock (61 pcs)
    €0,50 excl. VAT
    €0,60

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON000114
    107269 o krouzek 1 42 x 1 5 fpm 70 din 3770 eu origin
    O-ring 1.42 x 1.5 FPM 70, DIN 3770 EU origin
    Stock (7 pcs)
    €0,40 excl. VAT
    €0,48

    An O-ring is a closed ring with a circular cross-section, made mainly of an...

    SKL_ON000045

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