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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

    617 items total

    List of products

    120235 o krouzek 98 x 2 5 nbr 70 din 3770 eu origin
    O-ring 98 x 2.5 NBR 70, DIN 3770 EU origin
    Stock (64 pcs)
    €0,42 excl. VAT
    €0,51

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

    SKL_ON031745
    229711 o krouzek 96 x 2 5 nbr 70 iso 3601
    O-ring 96 x 2.5 NBR 70, ISO 3601
    Stock (483 pcs)
    €0,28 excl. VAT
    €0,34

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

    SKL_ON031583
    235217 o krouzek 96 x 2 5 fpm 70 brown iso 3601
    O-ring 96 x 2.5 FPM 70 brown, ISO 3601
    Stock (108 pcs)
    €1,36 excl. VAT
    €1,65

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

    SKL_ON039078
    120118 o krouzek 95 x 2 5 nbr 70 din 3770 eu origin
    O-ring 95 x 2.5 NBR 70, DIN 3770 EU origin
    Stock (8 pcs)
    €0,48 excl. VAT
    €0,58

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

    SKL_ON031485
    120115 o krouzek 95 x 2 5 mvq 70 fda bfr din 3770 eu origin
    O-ring 95 x 2.5 MVQ 70 FDA BfR, DIN 3770 EU origin
    Stock (3 pcs)
    €8,72 excl. VAT
    €10,55

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

    SKL_ON031484
    120112 o krouzek 95 x 2 5 fpm 80 din 3770 eu origin
    O-ring 95 x 2.5 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €2,12 excl. VAT
    €2,57

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

    SKL_ON031483
    120034 o krouzek 94 x 2 5 nbr 90 din 3770 eu origin
    O-ring 94 x 2.5 NBR 90, DIN 3770 EU origin
    Stock (50 pcs)
    €1,67 excl. VAT
    €2,02

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

    SKL_ON031413
    120031 o krouzek 94 x 2 5 nbr 70 iso 3601
    O-ring 94 x 2.5 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,29 excl. VAT
    €0,35

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

    SKL_ON031412
    120037 o krouzek 94 x 2 5 nbr 70 din 3770 eu origin
    O-ring 94 x 2.5 NBR 70, DIN 3770 EU origin
    Stock (147 pcs)
    €0,42 excl. VAT
    €0,51

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

    SKL_ON031411
    528676 o krouzek 94 x 2 5 fpm 80 brown din 3770
    O-ring 94 x 2.5 FPM 80 brown, DIN 3770
    Stock (5 pcs)
    €2,40 excl. VAT
    €2,91

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

    SKL_ON039478
    528838 o krouzek 93 x 2 5 fpm 80 din 3770
    O-ring 93 x 2.5 FPM 80, DIN 3770
    On order – within 3 weeks
    €1,80 excl. VAT
    €2,18

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

    SKL_ON039532
    119947 o krouzek 92 x 2 5 nbr 70 din 3770 eu origin
    O-ring 92 x 2.5 NBR 70, DIN 3770 EU origin
    Stock (236 pcs)
    €0,41 excl. VAT
    €0,50

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

    SKL_ON031152
    119917 o krouzek 91 x 2 5 nbr 70 iso 3601
    O-ring 91 x 2.5 NBR 70, ISO 3601
    Stock (258 pcs)
    €0,31 excl. VAT
    €0,37

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

    SKL_ON031012
    119854 o krouzek 90 x 2 5 nbr 90 iso 3601
    O-ring 90 x 2.5 NBR 90, ISO 3601
    Stock (492 pcs)
    €0,33 excl. VAT
    €0,40

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

    SKL_ON030832
    119860 o krouzek 90 x 2 5 nbr 70 iso 3601
    O-ring 90 x 2.5 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,21 excl. VAT
    €0,25

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

    SKL_ON030831
    565255 o krouzek 90 x 2 5 nbr 70 din 3770
    O-ring 90 x 2.5 NBR 70, DIN 3770
    Stock (106 pcs)
    €0,35 excl. VAT
    €0,42

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

    SKL_ON040411
    119857 o krouzek 90 x 2 5 nbr 50 din 3770 eu origin
    O-ring 90 x 2.5 NBR 50, DIN 3770 EU origin
    Stock (29 pcs)
    €3,07 excl. VAT
    €3,71

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

    SKL_ON030829
    119863 o krouzek 90 x 2 5 fpm 80 din 3770 eu origin
    O-ring 90 x 2.5 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €1,83 excl. VAT
    €2,22

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

    SKL_ON030827
    229663 o krouzek 90 x 2 5 fpm 70 brown iso 3601
    O-ring 90 x 2.5 FPM 70 brown, ISO 3601
    Stock (76 pcs)
    €1,26 excl. VAT
    €1,52

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

    SKL_ON030825
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 90 x 2.5 EPDM 70, DIN 3770 EU origin
    Stock (85 pcs)
    €0,75 excl. VAT
    €0,91

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

    SKL_ON041187
    109291 o krouzek 9 7 x 2 5 nbr 80 gost 9833 73 eu origin
    O-ring 9.7 x 2.5 NBR 80, GOST 9833-73 EU origin
    Stock (699 pcs)
    €0,39 excl. VAT
    €0,47

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

    SKL_ON030737
    231993 1 o krouzek 9 5 x 2 5 nbr 90 din 3770
    O-ring 9.5 x 2.5 NBR 90, DIN 3770
    Stock (1278 pcs)
    €0,07 excl. VAT
    €0,09

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

    SKL_ON038341
    109255 o krouzek 9 5 x 2 5 nbr 70 iso 3601
    O-ring 9.5 x 2.5 NBR 70, ISO 3601
    Stock (1443 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON030694
    109261 o krouzek 9 5 x 2 5 nbr 70 din 3770 eu origin
    O-ring 9.5 x 2.5 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks (1 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON030693
    562573 o krouzek 9 5 x 2 5 hnbr 70 green iso 3601
    O-ring 9.5 x 2.5 HNBR 70 green, ISO 3601
    Stock (682 pcs)
    €0,62 excl. VAT
    €0,75

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

    SKL_ON040223
    528889 o krouzek 9 5 x 2 5 fpm 80 din 3770
    O-ring 9.5 x 2.5 FPM 80, DIN 3770
    On order – within 3 weeks
    €0,38 excl. VAT
    €0,46

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

    SKL_ON039549
    109258 o krouzek 9 5 x 2 5 fpm 70 brown iso 3601
    O-ring 9.5 x 2.5 FPM 70 brown, ISO 3601
    Stock (1691 pcs)
    €0,22 excl. VAT
    €0,27

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

    SKL_ON030689
    109105 o krouzek 9 x 2 5 nbr 90 din 3770 eu origin
    O-ring 9 x 2.5 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,05 excl. VAT
    €0,06

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

    SKL_ON031078
    109108 o krouzek 9 x 2 5 nbr 70 iso 3601
    O-ring 9 x 2.5 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,02 excl. VAT
    €0,02

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

    SKL_ON031076
    109111 o krouzek 9 x 2 5 mvq 70 din 3770 eu origin
    O-ring 9 x 2.5 MVQ 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,09 excl. VAT
    €0,11

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

    SKL_ON031073
    562504 o krouzek 9 x 2 5 fpm 80 din 3770
    O-ring 9 x 2.5 FPM 80, DIN 3770
    Stock (71 pcs)
    €0,26 excl. VAT
    €0,32

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

    SKL_ON040200
    109102 o krouzek 9 x 2 5 fpm 70 black iso 3601
    O-ring 9 x 2.5 FPM 70 black, ISO 3601
    Stock (1441 pcs)
    €0,17 excl. VAT
    €0,20

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

    SKL_ON031068
    109114 o krouzek 9 x 2 5 epdm 70 peroxide fda din 3770 eu origin
    O-ring 9 x 2.5 EPDM 70 peroxide FDA, DIN 3770 EU origin
    Stock (6 pcs)
    €6,23 excl. VAT
    €7,54

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

    SKL_ON031066
    119809 o krouzek 89 x 2 5 nbr 70 din 3770 eu origin
    O-ring 89 x 2.5 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_ON030530
    119740 o krouzek 88 x 2 5 nbr 70 iso 3601
    O-ring 88 x 2.5 NBR 70, ISO 3601
    Stock (152 pcs)
    €0,24 excl. VAT
    €0,29

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

    SKL_ON030426
    560425 o krouzek 87 2 x 2 5 epdm 70 din 3770
    O-ring 87.2 x 2.5 EPDM 70, DIN 3770
    Stock (50 pcs)
    €0,84 excl. VAT
    €1,02

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

    SKL_ON040050
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 87 x 2.5 NBR 90, DIN 3770 EU origin
    Stock (65 pcs)
    €0,46 excl. VAT
    €0,56

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

    SKL_ON041182
    119704 o krouzek 87 x 2 5 nbr 70 iso 3601
    O-ring 87 x 2.5 NBR 70, ISO 3601
    Stock (423 pcs)
    €0,26 excl. VAT
    €0,32

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

    SKL_ON030294
    119656 o krouzek 86 x 2 5 nbr 90 din 3770 eu origin
    O-ring 86 x 2.5 NBR 90, DIN 3770 EU origin
    Stock (54 pcs)
    €0,64 excl. VAT
    €0,77

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

    SKL_ON030191
    119659 o krouzek 86 x 2 5 nbr 70 din 3770 eu origin
    O-ring 86 x 2.5 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,35 excl. VAT
    €0,42

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

    SKL_ON030188
    119554 o krouzek 85 x 2 5 nbr 70 iso 3601
    O-ring 85 x 2.5 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,17 excl. VAT
    €0,20

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

    SKL_ON030057
    119560 o krouzek 85 x 2 5 nbr 70 din 3770 eu origin
    O-ring 85 x 2.5 NBR 70, DIN 3770 EU origin
    Stock (120 pcs)
    €0,31 excl. VAT
    €0,37

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

    SKL_ON030056
    119557 o krouzek 85 x 2 5 fpm 80 din 3770 eu origin
    O-ring 85 x 2.5 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €1,78 excl. VAT
    €2,15

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

    SKL_ON030054
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 85 x 2.5 FPM 75 brown, DIN 3770 EU origin
    Stock (10 pcs)
    €1,78 excl. VAT
    €2,15

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

    SKL_ON041176
    529696 o krouzek 85 x 2 5 epdm 70 din 3770
    O-ring 85 x 2.5 EPDM 70, DIN 3770
    Stock (3 pcs)
    €0,56 excl. VAT
    €0,68

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

    SKL_ON039818
    119485 o krouzek 84 x 2 5 nbr 90 iso 3601
    O-ring 84 x 2.5 NBR 90, ISO 3601
    Stock (1489 pcs)
    €0,34 excl. VAT
    €0,41

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

    SKL_ON029924
    119365 o krouzek 82 x 2 5 nbr 70 iso 3601
    O-ring 82 x 2.5 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,17 excl. VAT
    €0,21

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

    SKL_ON029654
    119368 o krouzek 82 x 2 5 fpm 80 din 3770 eu origin
    O-ring 82 x 2.5 FPM 80, DIN 3770 EU origin
    Stock (10 pcs)
    €1,64 excl. VAT
    €1,99

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

    SKL_ON029651
    119344 o krouzek 81 x 2 5 nbr 70 iso 3601
    O-ring 81 x 2.5 NBR 70, ISO 3601
    Stock (942 pcs)
    €0,23 excl. VAT
    €0,28

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

    SKL_ON029457
    119272 o krouzek 80 x 2 5 nbr 70 iso 3601
    O-ring 80 x 2.5 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,17 excl. VAT
    €0,21

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

    SKL_ON029253
    119278 o krouzek 80 x 2 5 nbr 70 din 3770 eu origin
    O-ring 80 x 2.5 NBR 70, DIN 3770 EU origin
    Stock (60 pcs)
    €0,29 excl. VAT
    €0,35

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

    SKL_ON029252
    119281 o krouzek 80 x 2 5 fpm 80 din 3770 eu origin
    O-ring 80 x 2.5 FPM 80, DIN 3770 EU origin
    Stock (30 pcs)
    €1,56 excl. VAT
    €1,89

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

    SKL_ON029250
    119275 o krouzek 80 x 2 5 epdm 70 din 3770 eu origin
    O-ring 80 x 2.5 EPDM 70, DIN 3770 EU origin
    Stock (43 pcs)
    €0,54 excl. VAT
    €0,65

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

    SKL_ON029247
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 8.5 x 2.5 NBR 70, DIN 3770 EU origin
    Stock (2297 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON040927

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