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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

    297 items total

    List of products

    529606 o krouzek 97 8 x 5 33 nbr 80 din 3770
    O-ring 97.8 x 5.33 NBR 80, DIN 3770
    Stock (35 pcs)
    €1,07 excl. VAT
    €1,30

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

    SKL_ON039788
    120226 o krouzek 97 8 x 5 33 epdm 70 din 3770 eu origin
    O-ring 97.8 x 5.33 EPDM 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_ON031656
    564964 o krouzek 97 8 x 5 33 epdm 70 peroxide cured fda din 3770
    O-ring 97.8 x 5.33 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (46 pcs)
    €1,91 excl. VAT
    €2,31

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

    SKL_ON040314
    120217 o krouzek 97 79 x 5 33 nbr 90 din 3770 eu origin
    O-ring 97.79 x 5.33 NBR 90, DIN 3770 EU origin
    Stock (53 pcs)
    €1,11 excl. VAT
    €1,34

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

    SKL_ON031653
    565339 o krouzek 97 79 x 5 33 nbr 70 din 3770
    O-ring 97.79 x 5.33 NBR 70, DIN 3770
    Stock (48 pcs)
    €0,61 excl. VAT
    €0,74

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

    SKL_ON040439
    120220 o krouzek 97 79 x 5 33 fpm 80 din 3770 eu origin
    O-ring 97.79 x 5.33 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €5,36 excl. VAT
    €6,49

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

    SKL_ON031650
    120076 o krouzek 94 62 x 5 33 nbr 90 din 3770 eu origin
    O-ring 94.62 x 5.33 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,81 excl. VAT
    €0,98

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

    SKL_ON031356
    232764 1 o krouzek 94 62 x 5 33 nbr 80 din 3770
    O-ring 94.62 x 5.33 NBR 80, DIN 3770
    Stock (81 pcs)
    €0,77 excl. VAT
    €0,93

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

    SKL_ON038598
    528232 o krouzek 94 62 x 5 33 nbr 70 iso 3601
    O-ring 94.62 x 5.33 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,33 excl. VAT
    €0,40

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

    SKL_ON039330
    120079 o krouzek 94 62 x 5 33 nbr 70 din 3770 eu origin
    O-ring 94.62 x 5.33 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,49 excl. VAT
    €0,59

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

    SKL_ON031353
    528715 o krouzek 94 62 x 5 33 fpm 80 brown din 3770
    O-ring 94.62 x 5.33 FPM 80 brown, DIN 3770
    On order – within 3 weeks
    €4,40 excl. VAT
    €5,32

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

    SKL_ON039491
    119926 o krouzek 91 45 x 5 33 fpm 80 din 3770 eu origin
    O-ring 91.45 x 5.33 FPM 80, DIN 3770 EU origin
    Stock (2 pcs)
    €4,37 excl. VAT
    €5,29

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

    SKL_ON030957
    119920 o krouzek 91 44 x 5 33 nbr 90 din 3770 eu origin
    O-ring 91.44 x 5.33 NBR 90, DIN 3770 EU origin
    Stock (53 pcs)
    €1,15 excl. VAT
    €1,39

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

    SKL_ON030954
    560626 o krouzek 91 44 x 5 33 nbr 70 din 3770
    O-ring 91.44 x 5.33 NBR 70, DIN 3770
    Stock (3 pcs)
    €0,51 excl. VAT
    €0,62

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

    SKL_ON040144
    119839 o krouzek 89 69 x 5 33 nbr 90 din 3770 eu origin
    O-ring 89.69 x 5.33 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,94 excl. VAT
    €1,14

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

    SKL_ON030517
    119842 o krouzek 89 69 x 5 33 nbr 70 din 3770 eu origin
    O-ring 89.69 x 5.33 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,64 excl. VAT
    €0,77

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

    SKL_ON030516
    232737 1 o krouzek 88 27 x 5 33 nbr 90 din 3770
    O-ring 88.27 x 5.33 NBR 90, DIN 3770
    Stock (74 pcs)
    €0,98 excl. VAT
    €1,19

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

    SKL_ON038589
    232734 1 o krouzek 88 27 x 5 33 nbr 70 din 3770
    O-ring 88.27 x 5.33 NBR 70, DIN 3770
    Stock (230 pcs)
    €0,50 excl. VAT
    €0,61

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

    SKL_ON038588
    119776 o krouzek 88 27 x 5 33 fpm 80 din 3770 eu origin
    O-ring 88.27 x 5.33 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €3,96 excl. VAT
    €4,79

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

    SKL_ON030358
    119779 o krouzek 88 27 x 5 33 epdm 70 din 3770 eu origin
    O-ring 88.27 x 5.33 EPDM 70, DIN 3770 EU origin
    Stock (1 pcs)
    €1,33 excl. VAT
    €1,61

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

    SKL_ON030353
    119773 o krouzek 88 27 x 5 33 epdm 70 din 3770 eu origin
    O-ring 88.27 x 5.33 EPDM 70, DIN 3770 EU origin
    Stock (63 pcs)
    €1,34 excl. VAT
    €1,62

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

    SKL_ON030354
    565432 o krouzek 85 1 x 5 33 nbr 90 din 3770
    O-ring 85.1 x 5.33 NBR 90, DIN 3770
    Stock (3 pcs)
    €0,98 excl. VAT
    €1,18

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

    SKL_ON040470
    119626 o krouzek 85 09 x 5 33 nbr 80 din 3770 eu origin
    O-ring 85.09 x 5.33 NBR 80, DIN 3770 EU origin
    On order – within 3 weeks
    €1,77 excl. VAT
    €2,14

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

    SKL_ON029982
    528217 o krouzek 85 09 x 5 33 nbr 70 din 3770
    O-ring 85.09 x 5.33 NBR 70, DIN 3770
    On order – within 3 weeks
    €1,79 excl. VAT
    €2,16

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

    SKL_ON039325
    529573 o krouzek 85 09 x 5 33 mvq 70 din 3770
    O-ring 85.09 x 5.33 MVQ 70, DIN 3770
    Stock (110 pcs)
    €1,27 excl. VAT
    €1,54

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

    SKL_ON039777
    119623 o krouzek 85 09 x 5 33 fpm 70 brown iso 3601
    O-ring 85.09 x 5.33 FPM 70 brown, ISO 3601
    Stock (119 pcs)
    €2,76 excl. VAT
    €3,34

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

    SKL_ON029975
    529276 o krouzek 82 5 x 5 33 nbr 90 din 3770
    O-ring 82.5 x 5.33 NBR 90, DIN 3770
    Stock (36 pcs)
    €1,41 excl. VAT
    €1,71

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

    SKL_ON039678
    229591 o krouzek 81 92 x 5 33 nbr 70 din 3770 eu origin
    O-ring 81.92 x 5.33 NBR 70, DIN 3770 EU origin
    Stock (79 pcs)
    €0,43 excl. VAT
    €0,52

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

    SKL_ON029433
    119356 o krouzek 81 92 x 5 33 fpm 80 din 3770 eu origin
    O-ring 81.92 x 5.33 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €3,69 excl. VAT
    €4,46

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

    SKL_ON029430
    119242 o krouzek 79 77 x 5 33 nbr 90 din 3770 eu origin
    O-ring 79.77 x 5.33 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €1,34 excl. VAT
    €1,62

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

    SKL_ON028976
    528928 o krouzek 79 77 x 5 33 fpm 80 din 3770
    O-ring 79.77 x 5.33 FPM 80, DIN 3770
    On order – within 3 weeks
    €3,88 excl. VAT
    €4,70

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

    SKL_ON039562
    565534 o krouzek 78 97 x 5 33 mvq 70 red fda din 3770
    O-ring 78.97 x 5.33 MVQ 70 red, FDA, DIN 3770
    On order – within 3 weeks
    €1,61 excl. VAT
    €1,95

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

    SKL_ON040504
    529321 o krouzek 78 74 x 5 33 nbr 90 iso 3601
    O-ring 78.74 x 5.33 NBR 90, ISO 3601
    Stock (938 pcs)
    €0,55 excl. VAT
    €0,66

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

    SKL_ON039693
    119185 o krouzek 78 74 x 5 33 nbr 90 din 3770 eu origin
    O-ring 78.74 x 5.33 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €1,40 excl. VAT
    €1,70

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

    SKL_ON028818
    234845 1 o krouzek 78 74 x 5 33 nbr 70 iso 3601
    O-ring 78.74 x 5.33 NBR 70, ISO 3601
    Stock (372 pcs)
    €0,38 excl. VAT
    €0,46

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

    SKL_ON038954
    119182 o krouzek 78 74 x 5 33 nbr 70 din 3770 eu origin
    O-ring 78.74 x 5.33 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,61 excl. VAT
    €0,74

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

    SKL_ON028815
    229552 o krouzek 78 74 x 5 33 fpm 70 brown iso 3601
    O-ring 78.74 x 5.33 FPM 70 brown, ISO 3601
    On order – within 10 weeks
    €2,64 excl. VAT
    €3,19

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

    SKL_ON028810
    118987 o krouzek 75 57 x 5 33 nbr 90 din 3770 eu origin
    O-ring 75.57 x 5.33 NBR 90, DIN 3770 EU origin
    Stock (58 pcs)
    €0,83 excl. VAT
    €1

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

    SKL_ON028397
    229522 o krouzek 75 57 x 5 33 nbr 70 iso 3601
    O-ring 75.57 x 5.33 NBR 70, ISO 3601
    Stock (354 pcs)
    €0,35 excl. VAT
    €0,42

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

    SKL_ON028395
    118990 o krouzek 75 57 x 5 33 mvq 70 red din 3770 eu origin
    O-ring 75.57 x 5.33 MVQ 70 red, DIN 3770 EU origin
    Stock (8 pcs)
    €2,09 excl. VAT
    €2,53

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

    SKL_ON028392
    229519 o krouzek 75 57 x 5 33 fpm 80 din 3770 eu origin
    O-ring 75.57 x 5.33 FPM 80, DIN 3770 EU origin
    Stock (2 pcs)
    €3,44 excl. VAT
    €4,16

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

    SKL_ON028391
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 744 x 5.33 NBR 70, DIN 3770 EU origin
    Stock (3 pcs)
    €26,64 excl. VAT
    €32,23

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

    SKL_ON041365
    118885 o krouzek 74 63 x 5 33 nbr 90 din 3770 eu origin
    O-ring 74.63 x 5.33 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €1,74 excl. VAT
    €2,11

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

    SKL_ON028281
    118888 o krouzek 74 63 x 5 33 nbr 70 din 3770 eu origin
    O-ring 74.63 x 5.33 NBR 70, DIN 3770 EU origin
    Stock (44 pcs)
    €0,50 excl. VAT
    €0,61

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

    SKL_ON028280
    118882 o krouzek 74 63 x 5 33 fpm 80 din 3770 eu origin
    O-ring 74.63 x 5.33 FPM 80, DIN 3770 EU origin
    Stock (90 pcs)
    €3,45 excl. VAT
    €4,17

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

    SKL_ON028279
    118879 o krouzek 74 61 x 5 33 fpm 80 din 3770 eu origin
    O-ring 74.61 x 5.33 FPM 80, DIN 3770 EU origin
    Stock (3 pcs)
    €3,45 excl. VAT
    €4,17

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

    SKL_ON028273
    234755 1 o krouzek 72 62 x 5 33 nbr 70 din 3770 eu origin
    O-ring 72.62 x 5.33 NBR 70, DIN 3770, EU origin
    Stock (5 pcs)
    €0,59 excl. VAT
    €0,71

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

    SKL_ON038924
    118705 o krouzek 72 4 x 5 33 nbr 70 din 3770 eu origin
    O-ring 72.4 x 5.33 NBR 70, DIN 3770 EU origin
    Stock (173 pcs)
    €0,37 excl. VAT
    €0,45

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

    SKL_ON027919
    118702 o krouzek 72 39 x 5 33 nbr 90 din 3770 eu origin
    O-ring 72.39 x 5.33 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,61 excl. VAT
    €0,74

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

    SKL_ON027914
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 72 x 5.33 NBR 85, DIN 3770 EU origin
    Stock (9 pcs)
    €1,37 excl. VAT
    €1,66

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

    SKL_ON041382
    118429 o krouzek 69 22 x 5 33 nbr 90 din 3770 eu origin
    O-ring 69.22 x 5.33 NBR 90, DIN 3770 EU origin
    Stock (57 pcs)
    €0,60 excl. VAT
    €0,72

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

    SKL_ON027129
    229489 o krouzek 69 22 x 5 33 nbr 70 iso 3601
    O-ring 69.22 x 5.33 NBR 70, ISO 3601
    Stock (417 pcs)
    €0,29 excl. VAT
    €0,35

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

    SKL_ON027127
    118432 o krouzek 69 22 x 5 33 nbr 70 din 3770 eu origin
    O-ring 69.22 x 5.33 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,36 excl. VAT
    €0,44

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

    SKL_ON027126
    235088 o krouzek 69 22 x 5 33 fpm 80 din 3770 eu origin
    O-ring 69.22 x 5.33 FPM 80, 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_ON039035

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