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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

    60 items total

    List of products

    565063 o krouzek 5 x 5 nbr 70 din 3770
    O-ring 5 x 5 NBR 70, DIN 3770
    Stock (414 pcs)
    €0,10 excl. VAT
    €0,12

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

    SKL_ON040347
    108073 o krouzek 5 x 5 fpm 80 din 3770 eu origin
    O-ring 5 x 5 FPM 80, DIN 3770 EU origin
    Stock (9 pcs)
    €0,83 excl. VAT
    €1

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

    SKL_ON024264
    108070 o krouzek 5 x 4 nbr 70 din 3770 eu origin
    O-ring 5 x 4 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,06 excl. VAT
    €0,07

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

    SKL_ON024036
    108064 o krouzek 5 x 3 5 nbr 70 din 3770 eu origin
    O-ring 5 x 3.5 NBR 70, DIN 3770 EU origin
    Stock (845 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON023821
    108067 o krouzek 5 x 3 5 mvq 70 din 3770 eu origin
    O-ring 5 x 3.5 MVQ 70, 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_ON023819
    229324 o krouzek 5 x 3 nbr 70 iso 3601
    O-ring 5 x 3 NBR 70, 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_ON023779
    108058 o krouzek 5 x 3 nbr 70 din 3770 eu origin
    O-ring 5 x 3 NBR 70, DIN 3770 EU origin
    Stock (104 pcs)
    €0,05 excl. VAT
    €0,06

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

    SKL_ON023778
    560524 o krouzek 5 x 3 mvq 70 fda red din 3770
    O-ring 5 x 3 MVQ 70 FDA red, DIN 3770
    Stock (862 pcs)
    €0,12 excl. VAT
    €0,14

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

    SKL_ON040110
    108061 o krouzek 5 x 3 fpm 80 din 3770 eu origin
    O-ring 5 x 3 FPM 80, DIN 3770 EU origin
    Stock (225 pcs)
    €0,31 excl. VAT
    €0,37

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

    SKL_ON023775
    108055 o krouzek 5 x 2 65 nbr 70 din 3770 eu origin
    O-ring 5 x 2.65 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,03 excl. VAT
    €0,04

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

    SKL_ON023628
    108043 o krouzek 5 x 2 5 nbr 90 din 3770 eu origin
    O-ring 5 x 2.5 NBR 90, DIN 3770 EU origin
    Stock (1560 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON023609
    108037 o krouzek 5 x 2 5 nbr 70 iso 3601
    O-ring 5 x 2.5 NBR 70, ISO 3601
    Stock (8021 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON023607
    234548 1 o krouzek 5 x 2 5 nbr 70 din 3770 eu origin
    O-ring 5 x 2.5 NBR 70, DIN 3770, EU origin
    Stock (2051 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON038855
    108052 o krouzek 5 x 2 5 mvq 70 din 3770 eu origin
    O-ring 5 x 2.5 MVQ 70, DIN 3770 EU origin
    Stock (114 pcs)
    €0,10 excl. VAT
    €0,12

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

    SKL_ON023604
    231909 1 o krouzek 5 x 2 5 mvq 70 transparent din 3770
    O-ring 5 x 2.5 MVQ 70 TRANSPARENT, DIN 3770
    Stock (40 pcs)
    €4,26 excl. VAT
    €5,15

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

    SKL_ON038313
    108046 o krouzek 5 x 2 5 fpm 80 din 3770 eu origin
    O-ring 5 x 2.5 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €0,21 excl. VAT
    €0,26

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

    SKL_ON023603
    108040 o krouzek 5 x 2 5 fpm 70 brown iso 3601
    O-ring 5 x 2.5 FPM 70 brown, ISO 3601
    Stock (2222 pcs)
    €0,14 excl. VAT
    €0,17

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

    SKL_ON023601
    108049 o krouzek 5 x 2 5 epdm 70 din 3770 eu origin
    O-ring 5 x 2.5 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_ON023600
    231906 1 o krouzek 5 x 2 5 epdm 70 din 3770
    O-ring 5 x 2.5 EPDM 70, DIN 3770
    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_ON038312
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 5 x 2.5 EPDM 70 FDA peroxide, DIN 3770 EU origin
    Stock (800 pcs)
    €0,08 excl. VAT
    €0,10

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

    SKL_ON040895
    108022 o krouzek 5 x 2 nbr 90 din 3770 eu origin
    O-ring 5 x 2 NBR 90, DIN 3770 EU origin
    Stock (1189 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON023563
    108034 o krouzek 5 x 2 nbr 80 din 3770 eu origin
    O-ring 5 x 2 NBR 80, DIN 3770 EU origin
    On order – within 3 weeks (3 pcs)
    €0,05 excl. VAT
    €0,06

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

    SKL_ON023562
    108019 o krouzek 5 x 2 nbr 70 din 3770 eu origin
    O-ring 5 x 2 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,02 excl. VAT
    €0,02

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

    SKL_ON023559
    108013 o krouzek 5 x 2 nbr 70 din 3770
    O-ring 5 x 2 NBR 70, DIN 3770
    Stock (>10000 pcs)
    €0,01 excl. VAT
    €0,01

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

    SKL_ON023561
    108028 o krouzek 5 x 2 mvq 70 red fda din 3770 eu origin
    O-ring 5 x 2 MVQ 70 red FDA, 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_ON023556
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 5 x 2 MVQ 70 FDA red, DIN 3770 EU origin
    Stock (1060 pcs)
    €0,08 excl. VAT
    €0,10

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

    SKL_ON040894
    O-ring 5 x 2 HNBR 70 green, DIN 3770
    O-ring 5 x 2 HNBR 70 green, DIN 3770
    Stock (339 pcs)
    €0,17 excl. VAT
    €0,21

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

    SKL_ON039173
    231903 1 o krouzek 5 x 2 fpm 90 din 3770
    O-ring 5 x 2 FPM 90, DIN 3770
    Stock (424 pcs)
    €0,18 excl. VAT
    €0,22

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

    SKL_ON038311
    108031 o krouzek 5 x 2 fpm 80 din 3770 eu origin
    O-ring 5 x 2 FPM 80, DIN 3770 EU origin
    Stock (545 pcs)
    €0,17 excl. VAT
    €0,20

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

    SKL_ON023554
    108016 o krouzek 5 x 2 fpm 70 brown iso 3601
    O-ring 5 x 2 FPM 70 brown, ISO 3601
    Stock (1386 pcs)
    €0,12 excl. VAT
    €0,14

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

    SKL_ON023552
    O-ring 5 x 2 FFKM 75
    O-ring 5 x 2 FFKM 75
    Stock (3 pcs)
    €14,01 excl. VAT
    €16,95

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

    SKL_ON040660
    108025 o krouzek 5 x 2 epdm 70 din 3770 eu origin
    O-ring 5 x 2 EPDM 70, DIN 3770 EU origin
    On order – within 3 weeks (8 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON023549
    108007 o krouzek 5 x 1 8 nbr 90 iso 3601
    O-ring 5 x 1.8 NBR 90, ISO 3601
    Stock (>10000 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON023414
    108010 o krouzek 5 x 1 8 fpm 80 din 3770 eu origin
    O-ring 5 x 1.8 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €0,16 excl. VAT
    €0,19

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

    SKL_ON023407
    229306 o krouzek 5 x 1 8 fpm 70 brown iso 3601
    O-ring 5 x 1.8 FPM 70 brown, ISO 3601
    Stock (3515 pcs)
    €0,09 excl. VAT
    €0,11

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

    SKL_ON023405
    108004 o krouzek 5 x 1 75 nbr 70 din 3770 eu origin
    O-ring 5 x 1.75 NBR 70, DIN 3770 EU origin
    Stock (1208 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON023402
    559468 o krouzek 5 x 1 5 ptfe din 3770
    O-ring 5 x 1.5 PTFE, DIN 3770
    Stock (59 pcs)
    €1,69 excl. VAT
    €2,04

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

    SKL_ON040000
    107989 o krouzek 5 x 1 5 nbr 90 iso 3601
    O-ring 5 x 1.5 NBR 90, ISO 3601
    Stock (>10000 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON023361
    107992 o krouzek 5 x 1 5 nbr 70 iso 3601
    O-ring 5 x 1.5 NBR 70, ISO 3601
    Stock (5254 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON023358
    565474 o krouzek 5 x 1 5 mvq 70 red fda din 3770
    O-ring 5 x 1.5 MVQ 70 red, FDA, DIN 3770
    Stock (1976 pcs)
    €0,09 excl. VAT
    €0,11

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

    SKL_ON040484
    107998 o krouzek 5 x 1 5 mvq 70 fda din 3770 eu origin
    O-ring 5 x 1.5 MVQ 70 FDA, DIN 3770 EU origin
    On order – within 3 weeks (2 pcs)
    €0,09 excl. VAT
    €0,11

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

    SKL_ON023356
    565753 1 o krouzek 5 x 1 5 fpm 80 din 3770
    O-ring 5 x 1.5 FPM 80, DIN 3770
    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_ON040577
    107995 o krouzek 5 x 1 5 fpm 70 black iso 3601
    O-ring 5 x 1.5 FPM 70 black, ISO 3601
    On order – within 10 weeks
    €0,06 excl. VAT
    €0,07

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

    SKL_ON023350
    108001 o krouzek 5 x 1 5 epdm 70 din 3770 eu origin
    O-ring 5 x 1.5 EPDM 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,03 excl. VAT
    €0,04

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

    SKL_ON023348
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 5 x 1.5 EPDM 70 FDA peroxide, DIN 3770 EU origin
    Stock (1045 pcs)
    €0,08 excl. VAT
    €0,10

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

    SKL_ON040893
    O-ring 5 x 1.25 NBR 80 DIN 3770
    O-ring 5 x 1.25 NBR 80 DIN 3770
    Stock (1980 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON040842
    107983 o krouzek 5 x 1 2 nbr 90 din 3770 eu origin
    O-ring 5 x 1.2 NBR 90, DIN 3770 EU origin
    Stock (382 pcs)
    €0,05 excl. VAT
    €0,06

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

    SKL_ON023332
    107977 o krouzek 5 x 1 2 nbr 70 din 3770 eu origin
    O-ring 5 x 1.2 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks (17 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON023331
    107986 o krouzek 5 x 1 2 fpm 80 din 3770 eu origin
    O-ring 5 x 1.2 FPM 80, DIN 3770 EU origin
    Stock (647 pcs)
    €0,12 excl. VAT
    €0,14

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

    SKL_ON023329
    107980 o krouzek 5 x 1 2 epdm 70 din 3770 eu origin
    O-ring 5 x 1.2 EPDM 70, DIN 3770 EU origin
    Stock (500 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON023328
    107965 o krouzek 5 x 1 nbr 90 din 3770 eu origin
    O-ring 5 x 1 NBR 90, DIN 3770 EU origin
    Stock (1509 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON023325
    107959 o krouzek 5 x 1 nbr 70 iso 3601
    O-ring 5 x 1 NBR 70, ISO 3601
    Stock (>10000 pcs)
    €0,01 excl. VAT
    €0,01

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

    SKL_ON023324
    107971 o krouzek 5 x 1 nbr 70 din 3770 eu origin
    O-ring 5 x 1 NBR 70, DIN 3770 EU origin
    Stock (>10000 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON023323
    234866 o krouzek 5 x 1 mvq 70 red fda din 3770 eu origin
    O-ring 5 x 1 MVQ 70 red, FDA, DIN 3770, EU origin
    Stock (910 pcs)
    €0,08 excl. VAT
    €0,10

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

    SKL_ON038961

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