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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

    213 items total

    List of products

    232788 1 o krouzek 99 6 x 5 7 nbr 90 din 3770
    O-ring 99.6 x 5.7 NBR 90, DIN 3770
    Stock (15 pcs)
    €0,97 excl. VAT
    €1,17

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

    SKL_ON038606
    234836 1 o krouzek 99 6 x 5 7 nbr 70 iso 3601
    O-ring 99.6 x 5.7 NBR 70, ISO 3601
    Stock (336 pcs)
    €0,46 excl. VAT
    €0,56

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

    SKL_ON038951
    120289 o krouzek 99 3 x 5 7 fpm 80 din 3770 eu origin
    O-ring 99.3 x 5.7 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €6,26 excl. VAT
    €7,58

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

    SKL_ON031798
    120286 o krouzek 99 2 x 5 7 nbr 90 din 3770 eu origin
    O-ring 99.2 x 5.7 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,91 excl. VAT
    €1,10

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

    SKL_ON031797
    229720 o krouzek 99 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 99.2 x 5.7 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,62 excl. VAT
    €0,75

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

    SKL_ON031796
    120211 o krouzek 97 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 97.2 x 5.7 NBR 70, DIN 3770 EU origin
    Stock (30 pcs)
    €0,74 excl. VAT
    €0,90

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

    SKL_ON031618
    232761 1 o krouzek 94 6 x 5 7 nbr 90 din 3770
    O-ring 94.6 x 5.7 NBR 90, DIN 3770
    Stock (8 pcs)
    €0,99 excl. VAT
    €1,20

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

    SKL_ON038597
    229699 o krouzek 94 6 x 5 7 nbr 70 iso 3601
    O-ring 94.6 x 5.7 NBR 70, ISO 3601
    Stock (408 pcs)
    €0,49 excl. VAT
    €0,59

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

    SKL_ON031363
    232758 1 o krouzek 94 3 x 5 7 nbr 70 din 3770
    O-ring 94.3 x 5.7 NBR 70, DIN 3770
    Stock (23 pcs)
    €0,89 excl. VAT
    €1,08

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

    SKL_ON038596
    120064 o krouzek 94 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 94.2 x 5.7 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,56 excl. VAT
    €0,68

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

    SKL_ON031331
    120067 o krouzek 94 2 x 5 7 fpm 80 din 3770 eu origin
    O-ring 94.2 x 5.7 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €5,72 excl. VAT
    €6,92

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

    SKL_ON031330
    119992 o krouzek 92 2 x 5 7 nbr 90 din 3770 eu origin
    O-ring 92.2 x 5.7 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €1,01 excl. VAT
    €1,22

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

    SKL_ON031064
    119989 o krouzek 92 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 92.2 x 5.7 NBR 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_ON031063
    119836 o krouzek 89 6 x 5 7 nbr 90 jis b 2401 eu origin p90 1b
    O-ring 89.6 x 5.7 NBR 90, JIS B 2401 EU origin, P90 1B
    Stock (8 pcs)
    €2,24 excl. VAT
    €2,71

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

    SKL_ON030513
    229642 o krouzek 89 6 x 5 7 nbr 90 iso 3601
    O-ring 89.6 x 5.7 NBR 90, ISO 3601
    Stock (675 pcs)
    €0,85 excl. VAT
    €1,03

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

    SKL_ON030512
    229639 o krouzek 89 6 x 5 7 nbr 70 iso 3601
    O-ring 89.6 x 5.7 NBR 70, ISO 3601
    Stock (331 pcs)
    €0,45 excl. VAT
    €0,54

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

    SKL_ON030511
    119830 o krouzek 89 2 x 5 7 nbr 90 din 3770 eu origin
    O-ring 89.2 x 5.7 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,80 excl. VAT
    €0,97

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

    SKL_ON030493
    119827 o krouzek 89 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 89.2 x 5.7 NBR 70, DIN 3770 EU origin
    Stock (210 pcs)
    €0,50 excl. VAT
    €0,61

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

    SKL_ON030492
    232743 1 o krouzek 89 2 x 5 7 mvq 70 fda din 3770
    O-ring 89.2 x 5.7 MVQ 70 FDA, DIN 3770
    Stock (3 pcs)
    €1,42 excl. VAT
    €1,72

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

    SKL_ON038591
    235076 o krouzek 89 2 x 5 7 fpm 80 din 3770 eu origin
    O-ring 89.2 x 5.7 FPM 80, DIN 3770, EU origin
    Stock (2 pcs)
    €4,87 excl. VAT
    €5,89

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

    SKL_ON039031
    119833 o krouzek 89 2 x 5 7 epdm 70 din 3770 eu origin
    O-ring 89.2 x 5.7 EPDM 70, DIN 3770 EU origin
    Stock (18 pcs)
    €0,99 excl. VAT
    €1,20

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

    SKL_ON030490
    119731 o krouzek 87 2 x 5 7 nbr 90 din 3770 eu origin
    O-ring 87.2 x 5.7 NBR 90, DIN 3770 EU origin
    Stock (7 pcs)
    €1,60 excl. VAT
    €1,94

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

    SKL_ON030248
    232704 1 o krouzek 84 6 x 5 7 nbr 90 din 3770
    O-ring 84.6 x 5.7 NBR 90, DIN 3770
    On order – within 3 weeks
    €0,76 excl. VAT
    €0,92

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

    SKL_ON038578
    119530 o krouzek 84 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 84.2 x 5.7 NBR 70, DIN 3770 EU origin
    Stock (12 pcs)
    €0,44 excl. VAT
    €0,53

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

    SKL_ON029867
    529111 o krouzek 84 2 x 5 7 mvq 70 red fda din 3770
    O-ring 84.2 x 5.7 MVQ 70 red FDA, DIN 3770
    Stock (31 pcs)
    €1,80 excl. VAT
    €2,18

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

    SKL_ON039623
    119533 o krouzek 84 2 x 5 7 fpm 80 din 3770 eu origin
    O-ring 84.2 x 5.7 FPM 80, DIN 3770 EU origin
    Stock (12 pcs)
    €4,15 excl. VAT
    €5,02

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

    SKL_ON029866
    119536 o krouzek 84 2 x 5 7 epdm 70 din 3770 eu origin
    O-ring 84.2 x 5.7 EPDM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €1,12 excl. VAT
    €1,35

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

    SKL_ON029865
    119419 o krouzek 82 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 82.2 x 5.7 NBR 70, DIN 3770 EU origin
    Stock (26 pcs)
    €0,50 excl. VAT
    €0,61

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

    SKL_ON029555
    119353 o krouzek 81 2 x 5 7 nbr 90 din 3770 eu origin
    O-ring 81.2 x 5.7 NBR 90, DIN 3770 EU origin
    Stock (27 pcs)
    €0,80 excl. VAT
    €0,97

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

    SKL_ON029378
    119236 o krouzek 79 6 x 5 7 nbr 90 iso 3601
    O-ring 79.6 x 5.7 NBR 90, ISO 3601
    Stock (1067 pcs)
    €0,60 excl. VAT
    €0,73

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

    SKL_ON028973
    229573 o krouzek 79 6 x 5 7 nbr 70 iso 3601
    O-ring 79.6 x 5.7 NBR 70, ISO 3601
    Stock (208 pcs)
    €0,40 excl. VAT
    €0,48

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

    SKL_ON028972
    119239 o krouzek 79 6 x 5 7 fpm 70 green iso 3601
    O-ring 79.6 x 5.7 FPM 70 green, ISO 3601
    Stock (85 pcs)
    €7,21 excl. VAT
    €8,72

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

    SKL_ON028970
    232686 1 o krouzek 79 3 x 5 7 nbr 70 din 3770
    O-ring 79.3 x 5.7 NBR 70, DIN 3770
    On order – within 3 weeks (1 pcs)
    €0,59 excl. VAT
    €0,71

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

    SKL_ON038572
    119215 o krouzek 79 x 5 7 mvq 70 eu origin
    O-ring 79 x 5.7 MVQ 70, EU origin
    Stock (69 pcs)
    €2,40 excl. VAT
    €2,91

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

    SKL_ON029038
    119104 o krouzek 77 2 x 5 7 nbr 90 din 3770 eu origin
    O-ring 77.2 x 5.7 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,78 excl. VAT
    €0,94

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

    SKL_ON028698
    119101 o krouzek 77 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 77.2 x 5.7 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,62 excl. VAT
    €0,75

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

    SKL_ON028697
    118873 o krouzek 74 6 x 5 7 nbr 70 din 3770 eu origin
    O-ring 74.6 x 5.7 NBR 70, DIN 3770 EU origin
    Stock (92 pcs)
    €0,51 excl. VAT
    €0,62

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

    SKL_ON028286
    118861 o krouzek 74 3 x 5 7 nbr 90 din 3770 eu origin
    O-ring 74.3 x 5.7 NBR 90, DIN 3770 EU origin
    Stock (4 pcs)
    €0,69 excl. VAT
    €0,83

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

    SKL_ON028254
    118849 o krouzek 74 2 x 5 7 nbr 90 din 3770 eu origin
    O-ring 74.2 x 5.7 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,67 excl. VAT
    €0,81

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

    SKL_ON028251
    118852 o krouzek 74 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 74.2 x 5.7 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_ON028250
    118858 o krouzek 74 2 x 5 7 fpm 80 din 3770 eu origin
    O-ring 74.2 x 5.7 FPM 80, DIN 3770 EU origin
    Stock (2 pcs)
    €4,28 excl. VAT
    €5,18

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

    SKL_ON028249
    118855 o krouzek 74 2 x 5 7 epdm 70 din 3770 eu origin
    O-ring 74.2 x 5.7 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_ON028248
    232662 1 o krouzek 74 2 x 5 7 epdm 70 peroxide fda din 3770
    O-ring 74.2 x 5.7 EPDM 70 peroxide FDA, DIN 3770
    Stock (20 pcs)
    €1,40 excl. VAT
    €1,69

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

    SKL_ON038564
    118699 o krouzek 72 2 x 5 7 nbr 90 din 3770 eu origin
    O-ring 72.2 x 5.7 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,70 excl. VAT
    €0,85

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

    SKL_ON027907
    118609 o krouzek 71 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 71.2 x 5.7 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,58 excl. VAT
    €0,70

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

    SKL_ON027756
    118570 o krouzek 70 6 x 5 7 fpm 70 green iso 3601
    O-ring 70.6 x 5.7 FPM 70 green, ISO 3601
    Stock (374 pcs)
    €6,62 excl. VAT
    €8,01

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

    SKL_ON027579
    232638 1 o krouzek 69 6 x 5 7 nbr 90 din 3770
    O-ring 69.6 x 5.7 NBR 90, DIN 3770
    Stock (34 pcs)
    €1,06 excl. VAT
    €1,28

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

    SKL_ON038556
    118450 o krouzek 69 5 x 5 7 nbr 70 din 3770 eu origin
    O-ring 69.5 x 5.7 NBR 70, DIN 3770 EU origin
    Stock (2 pcs)
    €0,58 excl. VAT
    €0,70

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

    SKL_ON027188
    529600 o krouzek 69 3 x 5 7 nbr 80 din 3770
    O-ring 69.3 x 5.7 NBR 80, DIN 3770
    Stock (55 pcs)
    €1,09 excl. VAT
    €1,32

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

    SKL_ON039786
    565717 o krouzek 69 3 x 5 7 fpm 75 din 3770
    O-ring 69.3 x 5.7 FPM 75, DIN 3770
    Stock (47 pcs)
    €4,01 excl. VAT
    €4,85

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

    SKL_ON040565
    118417 o krouzek 69 2 x 5 7 nbr 70 din 3770 eu origin
    O-ring 69.2 x 5.7 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,40 excl. VAT
    €0,49

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

    SKL_ON027137
    118420 o krouzek 69 2 x 5 7 fpm 80 din 3770 eu origin
    O-ring 69.2 x 5.7 FPM 80, DIN 3770 EU origin
    Stock (2 pcs)
    €3,76 excl. VAT
    €4,55

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

    SKL_ON027135
    118414 o krouzek 69 2 x 5 7 fpm 80 brown din 3770
    O-ring 69.2 x 5.7 FPM 80 brown, DIN 3770
    Stock (1 pcs)
    €1,73 excl. VAT
    €2,09

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

    SKL_ON027136
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 68.6 x 5.7 NBR 70, DIN 3770 EU origin
    Stock (77 pcs)
    €0,69 excl. VAT
    €0,84

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

    SKL_ON041147

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