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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

    91 items total

    List of products

    109504 o krouzek 10 x 6 5 epdm 70 din 3770 eu origin
    O-ring 10 x 6.5 EPDM 70, DIN 3770 EU origin
    Stock (771 pcs)
    €0,64 excl. VAT
    €0,78

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

    SKL_ON001032
    109501 o krouzek 10 x 6 nbr 70 din 3770 eu origin
    O-ring 10 x 6 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,13 excl. VAT
    €0,16

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

    SKL_ON001025
    109498 o krouzek 10 x 6 fpm 80 brown din 3770 eu origin
    O-ring 10 x 6 FPM 80 brown, DIN 3770 EU origin
    Stock (363 pcs)
    €1,50 excl. VAT
    €1,82

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

    SKL_ON001024
    527884 o krouzek 10 x 5 nbr 70 iso 3601
    O-ring 10 x 5 NBR 70, ISO 3601
    Stock (1780 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON039214
    109492 o krouzek 10 x 5 nbr 70 din 3770 eu origin
    O-ring 10 x 5 NBR 70, DIN 3770 EU origin
    Stock (485 pcs)
    €0,14 excl. VAT
    €0,17

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

    SKL_ON000926
    109486 o krouzek 10 x 5 nbr 70 din 3770
    O-ring 10 x 5 NBR 70, DIN 3770
    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_ON000928
    109495 o krouzek 10 x 5 fpm 80 din 3770 eu origin
    O-ring 10 x 5 FPM 80, DIN 3770 EU origin
    Stock (3 pcs)
    €0,89 excl. VAT
    €1,08

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

    SKL_ON000923
    109489 o krouzek 10 x 5 epdm 70 din 3770 eu origin
    O-ring 10 x 5 EPDM 70, DIN 3770 EU origin
    Stock (113 pcs)
    €0,14 excl. VAT
    €0,17

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

    SKL_ON000920
    232002 1 o krouzek 10 x 4 5 nbr 70 din 3770
    O-ring 10 x 4.5 NBR 70, DIN 3770
    Stock (467 pcs)
    €0,19 excl. VAT
    €0,23

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

    SKL_ON038344
    109477 o krouzek 10 x 4 nbr 70 iso 3601
    O-ring 10 x 4 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,04 excl. VAT
    €0,05

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

    SKL_ON000823
    109480 o krouzek 10 x 4 nbr 70 din 3770 eu origin
    O-ring 10 x 4 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks (6 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON000822
    109483 o krouzek 10 x 4 epdm 70 din 3770 eu origin
    O-ring 10 x 4 EPDM 70, DIN 3770 EU origin
    Stock (257 pcs)
    €0,15 excl. VAT
    €0,18

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

    SKL_ON000816
    109462 o krouzek 10 x 3 5 nbr 70 iso 3601
    O-ring 10 x 3.5 NBR 70, ISO 3601
    Stock (6878 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON000730
    109471 o krouzek 10 x 3 5 nbr 70 din 3770 eu origin
    O-ring 10 x 3.5 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,07 excl. VAT
    €0,08

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

    SKL_ON000729
    528985 o krouzek 10 x 3 5 mvq 70 red fda din 3770
    O-ring 10 x 3.5 MVQ 70 red FDA, DIN 3770
    Stock (190 pcs)
    €0,19 excl. VAT
    €0,23

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

    SKL_ON039581
    109474 o krouzek 10 x 3 5 fpm 80 din 3770 eu origin
    O-ring 10 x 3.5 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €0,46 excl. VAT
    €0,56

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

    SKL_ON000727
    109465 o krouzek 10 x 3 5 fpm 70 black iso 3601
    O-ring 10 x 3.5 FPM 70 black, ISO 3601
    Stock (368 pcs)
    €0,23 excl. VAT
    €0,28

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

    SKL_ON000724
    109468 o krouzek 10 x 3 5 epdm 70 din 3770 eu origin
    O-ring 10 x 3.5 EPDM 70, DIN 3770 EU origin
    Stock (102 pcs)
    €0,16 excl. VAT
    €0,19

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

    SKL_ON000722
    109453 o krouzek 10 x 3 nbr 90 din 3770 eu origin
    O-ring 10 x 3 NBR 90, DIN 3770 EU origin
    Stock (130 pcs)
    €0,09 excl. VAT
    €0,11

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

    SKL_ON000720
    109444 o krouzek 10 x 3 nbr 70 iso 3601
    O-ring 10 x 3 NBR 70, ISO 3601
    Stock (3815 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON000718
    109450 o krouzek 10 x 3 nbr 70 din 3770 eu origin
    O-ring 10 x 3 NBR 70, 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_ON000717
    109456 o krouzek 10 x 3 mvq 70 fda bfr din 3770 eu origin
    O-ring 10 x 3 MVQ 70 FDA BfR, DIN 3770 EU origin
    Stock (27 pcs)
    €0,22 excl. VAT
    €0,27

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

    SKL_ON000715
    109459 o krouzek 10 x 3 fpm 80 din 3770 eu origin
    O-ring 10 x 3 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €0,34 excl. VAT
    €0,41

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

    SKL_ON000713
    565588 o krouzek 10 x 3 fpm 80 brown din 3770
    O-ring 10 x 3 FPM 80 brown, DIN 3770
    Stock (161 pcs)
    €0,34 excl. VAT
    €0,41

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

    SKL_ON040522
    109447 o krouzek 10 x 3 fpm 70 brown iso 3601
    O-ring 10 x 3 FPM 70 brown, ISO 3601
    Stock (165 pcs)
    €0,29 excl. VAT
    €0,35

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

    SKL_ON000711
    O-ring 10 x 3 EPDM 70 FDA peroxide
    O-ring 10 x 3 EPDM 70 FDA peroxide
    Stock (591 pcs)
    €0,11 excl. VAT
    €0,13

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

    SKL_ON040638
    228355 o krouzek 10 x 2 65 nbr 70 iso 3601
    O-ring 10 x 2.65 NBR 70, ISO 3601
    Stock (>10000 pcs)
    €0,08 excl. VAT
    €0,10

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

    SKL_ON000663
    235220 o krouzek 10 x 2 65 fpm 70 brown iso 3601
    O-ring 10 x 2.65 FPM 70 brown, ISO 3601
    Stock (857 pcs)
    €0,27 excl. VAT
    €0,33

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

    SKL_ON039079
    109441 o krouzek 10 x 2 6 fpm 80 din 3770 eu origin
    O-ring 10 x 2.6 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €2,93 excl. VAT
    €3,55

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

    SKL_ON000656
    228352 o krouzek 10 x 2 5 nbr 90 iso 3601
    O-ring 10 x 2.5 NBR 90, ISO 3601
    Stock (>10000 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON000655
    109435 o krouzek 10 x 2 5 nbr 90 din 3770 eu origin
    O-ring 10 x 2.5 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks
    €0,04 excl. VAT
    €0,05

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

    SKL_ON000654
    109417 o krouzek 10 x 2 5 nbr 70 iso 3601
    O-ring 10 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_ON000652
    109426 o krouzek 10 x 2 5 nbr 70 din 3770 eu origin
    O-ring 10 x 2.5 NBR 70, DIN 3770 EU origin
    Stock (1310 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON000651
    109429 o krouzek 10 x 2 5 nbr 60 din 3770 eu origin
    O-ring 10 x 2.5 NBR 60, DIN 3770 EU origin
    Stock (75 pcs)
    €0,96 excl. VAT
    €1,16

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

    SKL_ON000650
    563719 o krouzek 10 x 2 5 mvq 70 red fda din 3770
    O-ring 10 x 2.5 MVQ 70 red FDA, DIN 3770
    Stock (651 pcs)
    €0,10 excl. VAT
    €0,12

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

    SKL_ON040236
    109438 o krouzek 10 x 2 5 mvq 70 fda bfr din 3770 eu origin
    O-ring 10 x 2.5 MVQ 70 FDA BfR, DIN 3770 EU origin
    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_ON000648
    527773 o krouzek 10 x 2 5 hnbr 70 green din 3770
    O-ring 10 x 2.5 HNBR 70 green, DIN 3770
    Stock (116 pcs)
    €0,42 excl. VAT
    €0,51

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

    SKL_ON039177
    109432 o krouzek 10 x 2 5 fpm 80 din 3770 eu origin
    O-ring 10 x 2.5 FPM 80, DIN 3770 EU origin
    Stock (230 pcs)
    €0,30 excl. VAT
    €0,36

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

    SKL_ON000645
    O-ring 10 x 2.5 FPM 75 green DIN 3770
    O-ring 10 x 2.5 FPM 75 green DIN 3770
    Stock (6 pcs)
    €0,46 excl. VAT
    €0,56

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

    SKL_ON040678
    109420 o krouzek 10 x 2 5 fpm 70 brown iso 3601
    O-ring 10 x 2.5 FPM 70 brown, ISO 3601
    Stock (1000 pcs)
    €0,20 excl. VAT
    €0,24

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

    SKL_ON000643
    109423 o krouzek 10 x 2 5 epdm 70 din 3770 eu origin
    O-ring 10 x 2.5 EPDM 70, 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_ON000641
    529369 o krouzek 10 x 2 5 epdm 70 peroxide fda din 3770
    O-ring 10 x 2.5 EPDM 70 peroxide FDA, DIN 3770
    Stock (596 pcs)
    €0,21 excl. VAT
    €0,26

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

    SKL_ON039709
    109414 o krouzek 10 x 2 4 nbr 70 din 3770 eu origin
    O-ring 10 x 2.4 NBR 70, DIN 3770 EU origin
    Stock (1200 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON000640
    O-ring 10 x 2.4 MVQ 70 red DIN 3770
    O-ring 10 x 2.4 MVQ 70 red DIN 3770
    Stock (300 pcs)
    €0,87 excl. VAT
    €1,05

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

    SKL_ON040744
    109405 o krouzek 10 x 2 2 nbr 90 din 3770 eu origin
    O-ring 10 x 2.2 NBR 90, DIN 3770 EU origin
    Stock (337 pcs)
    €0,05 excl. VAT
    €0,06

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

    SKL_ON000639
    527881 o krouzek 10 x 2 2 nbr 70 din 3770
    O-ring 10 x 2.2 NBR 70, DIN 3770
    Stock (2435 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON039213
    109408 o krouzek 10 x 2 2 fpm 80 din 3770 eu origin
    O-ring 10 x 2.2 FPM 80, DIN 3770 EU origin
    Stock (7 pcs)
    €0,36 excl. VAT
    €0,44

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

    SKL_ON000636
    109411 o krouzek 10 x 2 2 epdm 70 din 3770 eu origin
    O-ring 10 x 2.2 EPDM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,45 excl. VAT
    €0,55

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

    SKL_ON000635
    109402 o krouzek 10 x 2 pu 029280 9 pu eu origin
    O-ring 10 x 2 PU, 029280.9 PU EU origin
    Stock (3 pcs)
    €0,91 excl. VAT
    €1,10

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

    SKL_ON000628
    228349 o krouzek 10 x 2 nbr 90 iso 3601
    O-ring 10 x 2 NBR 90, ISO 3601
    Stock (>10000 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON000627
    109381 o krouzek 10 x 2 nbr 70 iso 3601
    O-ring 10 x 2 NBR 70, ISO 3601
    Stock (9500 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON000622
    231999 1 o krouzek 10 x 2 nbr 70 din 3770
    O-ring 10 x 2 NBR 70, DIN 3770
    On order – within 3 weeks
    €0,02 excl. VAT
    €0,03

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

    SKL_ON038343
    109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 10 x 2 NBR 3167, EU origin
    Stock (563 pcs)
    €0,29 excl. VAT
    €0,35

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

    SKL_ON000620
    109393 o krouzek 10 x 2 mvq 70 red fda din 3770 eu origin
    O-ring 10 x 2 MVQ 70 red FDA, DIN 3770 EU origin
    On order – within 3 weeks
    €0,07 excl. VAT
    €0,09

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

    SKL_ON000617

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