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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

    238 items total

    List of products

    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 92 x 1 NBR 70, DIN 3770 EU origin
    Stock (120 pcs)
    €0,48 excl. VAT
    €0,58

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

    SKL_ON041189
    232746 1 o krouzek 90 x 1 nbr 70 din 3770
    O-ring 90 x 1 NBR 70, DIN 3770
    Stock (61 pcs)
    €0,32 excl. VAT
    €0,39

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

    SKL_ON038592
    109225 o krouzek 9 5 x 1 nbr 70 din 3770 eu origin
    O-ring 9.5 x 1 NBR 70, DIN 3770 EU origin
    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_ON030645
    109222 o krouzek 9 5 x 1 fpm 70 brown iso 3601
    O-ring 9.5 x 1 FPM 70 brown, ISO 3601
    Stock (4226 pcs)
    €0,10 excl. VAT
    €0,12

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

    SKL_ON030642
    109027 o krouzek 9 x 1 nbr 90 din 3770 eu origin
    O-ring 9 x 1 NBR 90, DIN 3770 EU origin
    Stock (388 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON030935
    109015 o krouzek 9 x 1 nbr 70 iso 3601
    O-ring 9 x 1 NBR 70, ISO 3601
    Stock (4126 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON030934
    109021 o krouzek 9 x 1 nbr 70 din 3770 eu origin
    O-ring 9 x 1 NBR 70, DIN 3770 EU origin
    Stock (1688 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON030933
    109018 o krouzek 9 x 1 mvq 70 din 3770 eu origin
    O-ring 9 x 1 MVQ 70, DIN 3770 EU origin
    Stock (2962 pcs)
    €0,05 excl. VAT
    €0,06

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

    SKL_ON030931
    109030 o krouzek 9 x 1 fpm 80 din 3770 eu origin
    O-ring 9 x 1 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €0,15 excl. VAT
    €0,18

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

    SKL_ON030930
    565585 o krouzek 9 x 1 fpm 80 brown din 3770
    O-ring 9 x 1 FPM 80 brown, DIN 3770
    Stock (176 pcs)
    €0,15 excl. VAT
    €0,18

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

    SKL_ON040521
    109024 o krouzek 9 x 1 epdm 70 din 3770 eu origin
    O-ring 9 x 1 EPDM 70, DIN 3770 EU origin
    Stock (855 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON030927
    232707 1 o krouzek 85 x 1 nbr 70 din 3770
    O-ring 85 x 1 NBR 70, DIN 3770
    Stock (202 pcs)
    €0,28 excl. VAT
    €0,34

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

    SKL_ON038579
    119446 o krouzek 83 x 1 nbr 70 din 3770 eu origin
    O-ring 83 x 1 NBR 70, DIN 3770 EU origin
    Stock (25 pcs)
    €0,42 excl. VAT
    €0,51

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

    SKL_ON029771
    233238 1 o krouzek 80 x 1 nbr 70 din 3770
    O-ring 80 x 1 NBR 70, DIN 3770
    Stock (76 pcs)
    €0,44 excl. VAT
    €0,53

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

    SKL_ON038756
    108949 o krouzek 8 5 x 1 nbr 70 din 3770 eu origin
    O-ring 8.5 x 1 NBR 70, DIN 3770 EU origin
    Stock (128 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON029079
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 8.5 x 1 MVQ 70 red, DIN 3770 EU origin
    Stock (1100 pcs)
    €0,07 excl. VAT
    €0,09

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

    SKL_ON040926
    231984 1 o krouzek 8 5 x 1 fpm 80 din 3770
    O-ring 8.5 x 1 FPM 80, DIN 3770
    Stock (530 pcs)
    €0,26 excl. VAT
    €0,32

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

    SKL_ON038338
    234404 o krouzek 8 x 1 nbr 90 din 3770 eu origin
    O-ring 8 x 1 NBR 90, DIN 3770 EU origin
    Stock (1660 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON038807
    108772 o krouzek 8 x 1 nbr 70 iso 3601
    O-ring 8 x 1 NBR 70, ISO 3601
    On order – within 10 weeks (47 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON029358
    108778 o krouzek 8 x 1 nbr 70 din 3770 eu origin
    O-ring 8 x 1 NBR 70, DIN 3770 EU origin
    Stock (1206 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON029357
    108775 o krouzek 8 x 1 mvq 70 red fda din 3770 eu origin
    O-ring 8 x 1 MVQ 70 red FDA, DIN 3770 EU origin
    Stock (1793 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON029356
    108784 o krouzek 8 x 1 fpm 80 din 3770 eu origin
    O-ring 8 x 1 FPM 80, DIN 3770 EU origin
    Stock (64 pcs)
    €0,14 excl. VAT
    €0,17

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

    SKL_ON029353
    108781 o krouzek 8 x 1 epdm 70 din 3770 eu origin
    O-ring 8 x 1 EPDM 70, DIN 3770 EU origin
    Stock (397 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON029349
    565111 o krouzek 78 x 1 nbr 70 din 3770
    O-ring 78 x 1 NBR 70, DIN 3770
    Stock (215 pcs)
    €2,79 excl. VAT
    €3,37

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

    SKL_ON040363
    559318 1 o krouzek 77 x 1 nbr 70 din 3770
    O-ring 77 x 1 NBR 70, DIN 3770
    Stock (204 pcs)
    €0,45 excl. VAT
    €0,54

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

    SKL_ON039950
    565108 o krouzek 76 x 1 nbr 70 din 3770
    O-ring 76 x 1 NBR 70, DIN 3770
    Stock (264 pcs)
    €0,93 excl. VAT
    €1,12

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

    SKL_ON040362
    559309 1 o krouzek 75 x 1 nbr 70 din 3770
    O-ring 75 x 1 NBR 70, DIN 3770
    Stock (255 pcs)
    €0,59 excl. VAT
    €0,71

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

    SKL_ON039947
    O-ring 74 x 1 FPM 80 DIN 3770
    O-ring 74 x 1 FPM 80 DIN 3770
    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_ON040687
    565105 o krouzek 72 x 1 nbr 70 din 3770
    O-ring 72 x 1 NBR 70, DIN 3770
    Stock (235 pcs)
    €0,63 excl. VAT
    €0,76

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

    SKL_ON040361
    232641 1 o krouzek 70 x 1 nbr 70 din 3770
    O-ring 70 x 1 NBR 70, DIN 3770
    Stock (65 pcs)
    €0,31 excl. VAT
    €0,38

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

    SKL_ON038557
    108619 o krouzek 7 5 x 1 nbr 70 din 3770 eu origin
    O-ring 7.5 x 1 NBR 70, DIN 3770 EU origin
    Stock (794 pcs)
    €0,07 excl. VAT
    €0,08

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

    SKL_ON027371
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 7 x 1 NBR 90, DIN 3770 EU origin
    Stock (2480 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON041370
    108466 o krouzek 7 x 1 nbr 70 iso 3601
    O-ring 7 x 1 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_ON027726
    108472 o krouzek 7 x 1 nbr 70 din 3770 eu origin
    O-ring 7 x 1 NBR 70, DIN 3770 EU origin
    Stock (3041 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON027725
    529015 o krouzek 7 x 1 mvq 70 red fda din 3770
    O-ring 7 x 1 MVQ 70 red FDA, DIN 3770
    Stock (1015 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON039591
    108469 o krouzek 7 x 1 fpm 70 brown iso 3601
    O-ring 7 x 1 FPM 70 brown, ISO 3601
    Stock (5050 pcs)
    €0,07 excl. VAT
    €0,08

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

    SKL_ON027720
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 7 x 1 EPDM 70, DIN 3770 EU origin
    Stock (1600 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON040914
    118309 o krouzek 68 x 1 nbr 70 din 3770 eu origin
    O-ring 68 x 1 NBR 70, DIN 3770 EU origin
    Stock (230 pcs)
    €0,66 excl. VAT
    €0,80

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

    SKL_ON026995
    565102 o krouzek 66 x 1 nbr 70 din 3770
    O-ring 66 x 1 NBR 70, DIN 3770
    Stock (490 pcs)
    €0,65 excl. VAT
    €0,79

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

    SKL_ON040360
    565099 o krouzek 63 x 1 nbr 70 din 3770
    O-ring 63 x 1 NBR 70, DIN 3770
    Stock (242 pcs)
    €0,31 excl. VAT
    €0,37

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

    SKL_ON040359
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 63 x 1 FPM 80 brown, DIN 3770 EU origin
    Stock (1 pcs)
    €2,64 excl. VAT
    €3,20

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

    SKL_ON041132
    232587 1 o krouzek 60 x 1 nbr 70 din 3770
    O-ring 60 x 1 NBR 70, DIN 3770
    On order – within 3 weeks
    €0,22 excl. VAT
    €0,27

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

    SKL_ON038539
    231939 1 o krouzek 6 5 x 1 nbr 90 din 3770
    O-ring 6.5 x 1 NBR 90, DIN 3770
    Stock (1143 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON038323
    108403 o krouzek 6 5 x 1 nbr 70 din 3770 eu origin
    O-ring 6.5 x 1 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_ON025328
    108367 o krouzek 6 2 x 1 nbr 70 din 3770 eu origin
    O-ring 6.2 x 1 NBR 70, DIN 3770 EU origin
    Stock (1061 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON025287
    563701 o krouzek 6 2 x 1 mvq 70 fda din 3770
    O-ring 6.2 x 1 MVQ 70 FDA, DIN 3770
    On order – within 3 weeks
    €0,31 excl. VAT
    €0,38

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

    SKL_ON040230
    108202 o krouzek 6 x 1 nbr 90 din 3770 eu origin
    O-ring 6 x 1 NBR 90, DIN 3770 EU origin
    Stock (1493 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON025669
    108196 o krouzek 6 x 1 nbr 70 iso 3601
    O-ring 6 x 1 NBR 70, ISO 3601
    Stock (7269 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON025668
    108205 o krouzek 6 x 1 mvq 70 red fda din 3770 eu origin
    O-ring 6 x 1 MVQ 70 red FDA, DIN 3770 EU origin
    Stock (783 pcs)
    €0,11 excl. VAT
    €0,13

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

    SKL_ON025665
    108208 o krouzek 6 x 1 fpm 80 din 3770 eu origin
    O-ring 6 x 1 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €0,11 excl. VAT
    €0,13

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

    SKL_ON025661
    108211 o krouzek 6 x 1 fpm 80 brown din 3770 eu origin
    O-ring 6 x 1 FPM 80 brown, 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_ON025662
    108193 o krouzek 6 x 1 fpm 80 brown din 3770
    O-ring 6 x 1 FPM 80 brown, DIN 3770
    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_ON025663
    108199 o krouzek 6 x 1 epdm 70 din 3770 eu origin
    O-ring 6 x 1 EPDM 70, DIN 3770 EU origin
    Stock (1590 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON025658
    116968 o krouzek 54 x 1 nbr 70 din 3770 eu origin
    O-ring 54 x 1 NBR 70, DIN 3770 EU origin
    Stock (817 pcs)
    €0,26 excl. VAT
    €0,31

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

    SKL_ON024132

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