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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

    78 items total

    List of products

    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
    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
    564937 o krouzek 85 x 5 epdm 70 peroxide cured fda din 3770
    O-ring 85 x 5 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (29 pcs)
    €1,64 excl. VAT
    €1,99

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

    SKL_ON040305
    529711 o krouzek 82 22 x 2 62 epdm 70 peroxide fda din 3770
    O-ring 82.22 x 2.62 EPDM 70 peroxide FDA, DIN 3770
    Stock (43 pcs)
    €0,66 excl. VAT
    €0,80

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

    SKL_ON039823
    529330 o krouzek 80 x 3 epdm 70 peroxide fda din 3770
    O-ring 80 x 3 EPDM 70 peroxide FDA, DIN 3770
    On order – within 3 weeks (1 pcs)
    €0,74 excl. VAT
    €0,89

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

    SKL_ON039696
    O-ring 8 x 2 EPDM 70 FDA peroxide
    O-ring 8 x 2 EPDM 70 FDA peroxide
    Stock (928 pcs)
    €0,13 excl. VAT
    €0,16

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

    SKL_ON040637
    558997 o krouzek 72 x 6 epdm 70 peroxide cured fda din 3770
    O-ring 72 x 6 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (11 pcs)
    €1,69 excl. VAT
    €2,04

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

    SKL_ON039843
    529333 o krouzek 65 x 6 epdm 70 peroxide fda din 3770
    O-ring 65 x 6 EPDM 70 peroxide FDA, DIN 3770
    Stock (33 pcs)
    €1,07 excl. VAT
    €1,29

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

    SKL_ON039697
    529372 o krouzek 64 77 x 2 62 epdm 70 peroxide fda din 3770
    O-ring 64.77 x 2.62 EPDM 70 peroxide FDA, DIN 3770
    Stock (75 pcs)
    €0,51 excl. VAT
    €0,62

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

    SKL_ON039710
    529393 o krouzek 60 04 x 1 78 epdm 70 peroxide fda din 3770
    O-ring 60.04 x 1.78 EPDM 70 peroxide FDA, DIN 3770
    Stock (139 pcs)
    €0,42 excl. VAT
    €0,51

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

    SKL_ON039717
    529348 o krouzek 60 x 4 epdm 70 peroxide fda din 3770
    O-ring 60 x 4 EPDM 70 peroxide FDA, DIN 3770
    On order – within 3 weeks
    €0,73 excl. VAT
    €0,88

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

    SKL_ON039702
    529378 o krouzek 6 4 x 1 8 epdm 70 peroxide fda din 3770
    O-ring 6.4 x 1.8 EPDM 70 peroxide FDA, DIN 3770
    Stock (1050 pcs)
    €0,07 excl. VAT
    €0,08

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

    SKL_ON039712
    108331 o krouzek 6 02 x 2 62 epdm 70 peroxide fda din 3770 eu origin
    O-ring 6.02 x 2.62 EPDM 70 peroxide FDA, DIN 3770 EU origin
    Stock (863 pcs)
    €0,19 excl. VAT
    €0,23

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

    SKL_ON025250
    117445 o krouzek 58 x 4 epdm 70 peroxide fda din 3770 eu origin
    O-ring 58 x 4 EPDM 70 peroxide FDA, DIN 3770 EU origin
    Stock (2 pcs)
    €10,09 excl. VAT
    €12,21

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

    SKL_ON025007
    564934 o krouzek 54 x 3 epdm 70 peroxide cured fda din 3770
    O-ring 54 x 3 EPDM 70 peroxide cured, FDA, DIN 3770
    On order – within 3 weeks
    €0,43 excl. VAT
    €0,52

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

    SKL_ON040304
    559009 o krouzek 50 x 5 epdm 70 peroxide cured fda din 3770
    O-ring 50 x 5 EPDM 70 peroxide cured, FDA, DIN 3770
    On order – within 3 weeks
    €0,63 excl. VAT
    €0,76

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

    SKL_ON039847
    564958 o krouzek 50 x 3 5 epdm 70 peroxide cured fda din 3770
    O-ring 50 x 3.5 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (83 pcs)
    €0,84 excl. VAT
    €1,02

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

    SKL_ON040312
    116614 o krouzek 50 x 2 5 epdm 70 peroxide fda din 3770 eu origin
    O-ring 50 x 2.5 EPDM 70 peroxide FDA, DIN 3770 EU origin
    Stock (3 pcs)
    €6,69 excl. VAT
    €8,10

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

    SKL_ON023156
    564910 o krouzek 5 x 1 epdm 70 peroxide cured fda din 3770
    O-ring 5 x 1 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (1100 pcs)
    €0,16 excl. VAT
    €0,19

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

    SKL_ON040296
    564955 o krouzek 48 x 2 5 epdm 70 peroxide cured fda din 3770
    O-ring 48 x 2.5 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (132 pcs)
    €0,54 excl. VAT
    €0,65

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

    SKL_ON040311
    529375 o krouzek 47 x 5 33 epdm 70 peroxide fda din 3770
    O-ring 47 x 5.33 EPDM 70 peroxide FDA, DIN 3770
    On order – within 3 weeks
    €0,97 excl. VAT
    €1,17

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

    SKL_ON039711
    O-ring 45 x 3 EPDM 70 FDA peroxide
    O-ring 45 x 3 EPDM 70 FDA peroxide
    Stock (63 pcs)
    €0,36 excl. VAT
    €0,44

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

    SKL_ON040645
    O-ring 44.12 x 2.62 EPDM 70 FDA peroxide
    O-ring 44.12 x 2.62 EPDM 70 FDA peroxide
    Stock (130 pcs)
    €0,39 excl. VAT
    €0,47

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

    SKL_ON040644
    529351 o krouzek 42 x 2 epdm 70 peroxide fda din 3770
    O-ring 42 x 2 EPDM 70 peroxide FDA, DIN 3770
    Stock (147 pcs)
    €0,29 excl. VAT
    €0,35

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

    SKL_ON039703
    564931 o krouzek 40 x 4 epdm 70 peroxide cured fda din 3770
    O-ring 40 x 4 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (101 pcs)
    €0,55 excl. VAT
    €0,66

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

    SKL_ON040303
    O-ring 40 x 3.5 EPDM 70 peroxide FDA, DIN 3770
    O-ring 40 x 3.5 EPDM 70 peroxide FDA, DIN 3770
    Stock (29 pcs)
    €0,54 excl. VAT
    €0,65

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

    SKL_ON039701
    564928 o krouzek 39 x 5 epdm 70 peroxide cured fda din 3770
    O-ring 39 x 5 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (50 pcs)
    €0,56 excl. VAT
    €0,68

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

    SKL_ON040302
    529336 o krouzek 38 x 4 epdm 70 peroxide fda din 3770
    O-ring 38 x 4 EPDM 70 peroxide FDA, DIN 3770
    On order – within 3 weeks
    €0,36 excl. VAT
    €0,43

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

    SKL_ON039698
    O-ring 37 x 2.5 EPDM 70 FDA peroxide
    O-ring 37 x 2.5 EPDM 70 FDA peroxide
    Stock (248 pcs)
    €0,23 excl. VAT
    €0,28

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

    SKL_ON040643
    114925 o krouzek 36 x 3 epdm 70 peroxide fda din 3770 eu origin
    O-ring 36 x 3 EPDM 70 peroxide FDA, DIN 3770 EU origin
    On order – within 3 weeks
    €4,69 excl. VAT
    €5,67

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

    SKL_ON018385
    564913 o krouzek 34 x 4 epdm 70 peroxide cured fda din 3770
    O-ring 34 x 4 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (139 pcs)
    €0,53 excl. VAT
    €0,64

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

    SKL_ON040297
    564919 o krouzek 34 x 3 5 epdm 70 peroxide cured fda din 3770
    O-ring 34 x 3.5 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (163 pcs)
    €0,47 excl. VAT
    €0,57

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

    SKL_ON040299
    529387 o krouzek 31 6 x 2 4 epdm 70 peroxide fda din 3770
    O-ring 31.6 x 2.4 EPDM 70 peroxide FDA, DIN 3770
    Stock (147 pcs)
    €0,32 excl. VAT
    €0,39

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

    SKL_ON039715
    O-ring 31 x 3 EPDM 70 FDA peroxide
    O-ring 31 x 3 EPDM 70 FDA peroxide
    Stock (175 pcs)
    €0,28 excl. VAT
    €0,34

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

    SKL_ON040642
    564907 o krouzek 3 x 1 epdm 70 peroxide cured fda din 3770
    O-ring 3 x 1 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (984 pcs)
    €0,12 excl. VAT
    €0,15

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

    SKL_ON040295
    529714 o krouzek 29 75 x 3 53 epdm 70 peroxide fda din 3770
    O-ring 29.75 x 3.53 EPDM 70 peroxide FDA, DIN 3770
    On order – within 3 weeks
    €0,25 excl. VAT
    €0,30

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

    SKL_ON039824
    564925 o krouzek 29 x 3 epdm 70 peroxide cured fda din 3770
    O-ring 29 x 3 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (238 pcs)
    €0,76 excl. VAT
    €0,92

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

    SKL_ON040301
    O-ring 28 x 3.5 EPDM 70 FDA peroxide
    O-ring 28 x 3.5 EPDM 70 FDA peroxide
    Stock (432 pcs)
    €0,22 excl. VAT
    €0,27

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

    SKL_ON040641
    529360 o krouzek 260 x 5 epdm 70 peroxide fda din 3770
    O-ring 260 x 5 EPDM 70 peroxide FDA, DIN 3770
    Stock (2 pcs)
    €13,77 excl. VAT
    €16,66

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

    SKL_ON039706
    558994 o krouzek 26 57 x 3 53 epdm 70 peroxide cured fda din 3770
    O-ring 26.57 x 3.53 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (215 pcs)
    €0,60 excl. VAT
    €0,72

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

    SKL_ON039842
    558991 o krouzek 26 x 3 5 epdm 70 peroxide cured fda din 3770
    O-ring 26 x 3.5 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (34 pcs)
    €0,59 excl. VAT
    €0,71

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

    SKL_ON039841
    113227 o krouzek 26 x 3 epdm 70 peroxide fda din 3770 eu origin
    O-ring 26 x 3 EPDM 70 peroxide FDA, DIN 3770 EU origin
    Stock (2 pcs)
    €4,35 excl. VAT
    €5,26

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

    SKL_ON013725
    529366 o krouzek 26 x 2 5 epdm 70 peroxide fda din 3770
    O-ring 26 x 2.5 EPDM 70 peroxide FDA, DIN 3770
    Stock (115 pcs)
    €0,17 excl. VAT
    €0,21

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

    SKL_ON039708
    529354 o krouzek 25 x 3 epdm 70 peroxide fda din 3770
    O-ring 25 x 3 EPDM 70 peroxide FDA, DIN 3770
    Stock (114 pcs)
    €0,22 excl. VAT
    €0,27

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

    SKL_ON039704
    559006 o krouzek 240 x 5 epdm 70 peroxide cured fda din 3770
    O-ring 240 x 5 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (3 pcs)
    €10,57 excl. VAT
    €12,79

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

    SKL_ON039846
    560437 o krouzek 24 6 x 3 6 epdm 70 fda peroxide din3770
    O-ring 24.6 x 3.6 EPDM 70 FDA peroxide, DIN3770
    Stock (215 pcs)
    €0,23 excl. VAT
    €0,28

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

    SKL_ON040081
    559003 o krouzek 228 x 3 epdm 70 peroxide cured fda din 3770
    O-ring 228 x 3 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (2 pcs)
    €3,69 excl. VAT
    €4,47

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

    SKL_ON039845
    529399 o krouzek 227 97 x 6 99 epdm 70 peroxide fda din 3770
    O-ring 227.97 x 6.99 EPDM 70 peroxide FDA, DIN 3770
    Stock (3 pcs)
    €8,13 excl. VAT
    €9,84

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

    SKL_ON039719
    O-ring 22 x 2 EPDM 70 FDA peroxide
    O-ring 22 x 2 EPDM 70 FDA peroxide
    Stock (490 pcs)
    €0,15 excl. VAT
    €0,18

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

    SKL_ON040640
    559000 o krouzek 209 14 x 3 53 epdm 70 peroxide cured fda din 3770
    O-ring 209.14 x 3.53 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (8 pcs)
    €6,93 excl. VAT
    €8,38

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

    SKL_ON039844
    O-ring 20 x 3 EPDM 70 FDA peroxide
    O-ring 20 x 3 EPDM 70 FDA peroxide
    Stock (204 pcs)
    €0,14 excl. VAT
    €0,17

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

    SKL_ON040639
    O-ring 196.22 x 6.99 EPDM 70 FDA peroxide
    O-ring 196.22 x 6.99 EPDM 70 FDA peroxide
    Stock (2 pcs)
    €6,18 excl. VAT
    €7,48

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

    SKL_ON040647
    564952 o krouzek 195 x 5 epdm 70 peroxide cured fda din 3770
    O-ring 195 x 5 EPDM 70 peroxide cured, FDA, DIN 3770
    Stock (12 pcs)
    €6,36 excl. VAT
    €7,69

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

    SKL_ON040310
    529402 o krouzek 189 87 x 5 33 epdm 70 peroxide fda din 3770
    O-ring 189.87 x 5.33 EPDM 70 peroxide FDA, DIN 3770
    Stock (8 pcs)
    €3,28 excl. VAT
    €3,97

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

    SKL_ON039720

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