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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

    58 items total

    List of products

    110302 o krouzek 13 x 7 5 nbr 90 din 3770
    O-ring 13 x 7.5 NBR 90, DIN 3770
    Stock (872 pcs)
    €0,23 excl. VAT
    €0,28

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

    SKL_ON004548
    110299 o krouzek 13 x 5 nbr 70 din 3770 eu origin
    O-ring 13 x 5 NBR 70, DIN 3770 EU origin
    Stock (450 pcs)
    €0,10 excl. VAT
    €0,12

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

    SKL_ON004367
    527908 o krouzek 13 x 4 5 nbr 70 din 3770
    O-ring 13 x 4.5 NBR 70, DIN 3770
    Stock (405 pcs)
    €0,23 excl. VAT
    €0,28

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

    SKL_ON039222
    110293 o krouzek 13 x 4 nbr 70 iso 3601
    O-ring 13 x 4 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,05 excl. VAT
    €0,06

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

    SKL_ON004320
    110296 o krouzek 13 x 4 nbr 70 din 3770 eu origin
    O-ring 13 x 4 NBR 70, DIN 3770 EU origin
    Stock (285 pcs)
    €0,08 excl. VAT
    €0,10

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

    SKL_ON004319
    110290 o krouzek 13 x 4 nbr 70 din 3770
    O-ring 13 x 4 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_ON004321
    559150 o krouzek 13 x 4 fpm 75 brown din 3770
    O-ring 13 x 4 FPM 75 brown, DIN 3770
    On order – within 3 weeks
    €0,55 excl. VAT
    €0,67

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

    SKL_ON039894
    562483 o krouzek 13 x 4 fpm 70 din 3770
    O-ring 13 x 4 FPM 70, DIN 3770
    Stock (44 pcs)
    €0,46 excl. VAT
    €0,56

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

    SKL_ON040193
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 13 x 4 FPM 70 brown, ISO 3601
    Stock (498 pcs)
    €0,44 excl. VAT
    €0,53

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

    SKL_ON041396
    110287 o krouzek 13 x 3 5 nbr 90 din 3770 eu origin
    O-ring 13 x 3.5 NBR 90, DIN 3770 EU origin
    On order – within 3 weeks (2 pcs)
    €0,11 excl. VAT
    €0,13

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

    SKL_ON004263
    110284 o krouzek 13 x 3 5 nbr 70 iso 3601
    O-ring 13 x 3.5 NBR 70, ISO 3601
    Stock (8208 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON004262
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 13 x 3.5 EPDM 70 peroxide FDA, DIN 3770 EU origin
    Stock (216 pcs)
    €0,24 excl. VAT
    €0,29

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

    SKL_ON040955
    110275 o krouzek 13 x 3 nbr 90 din 3770 eu origin
    O-ring 13 x 3 NBR 90, DIN 3770 EU origin
    Stock (557 pcs)
    €0,07 excl. VAT
    €0,08

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

    SKL_ON004235
    110269 o krouzek 13 x 3 nbr 70 din 3770 eu origin
    O-ring 13 x 3 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_ON004231
    110266 o krouzek 13 x 3 nbr 70 din 3770
    O-ring 13 x 3 NBR 70, DIN 3770
    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_ON004233
    110281 o krouzek 13 x 3 mvq 70 din 3770 eu origin
    O-ring 13 x 3 MVQ 70, DIN 3770 EU origin
    On order – within 3 weeks (1 pcs)
    €0,14 excl. VAT
    €0,17

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

    SKL_ON004229
    110272 o krouzek 13 x 3 fpm 70 brown iso 3601
    O-ring 13 x 3 FPM 70 brown, ISO 3601
    Stock (165 pcs)
    €0,32 excl. VAT
    €0,39

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

    SKL_ON004225
    110278 o krouzek 13 x 3 epdm 70 din 3770 eu origin
    O-ring 13 x 3 EPDM 70, 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_ON004223
    110251 o krouzek 13 x 2 5 nbr 90 din 3770 eu origin
    O-ring 13 x 2.5 NBR 90, DIN 3770 EU origin
    Stock (4292 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON004128
    110248 o krouzek 13 x 2 5 nbr 70 iso 3601
    O-ring 13 x 2.5 NBR 70, ISO 3601
    Stock (2927 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON004126
    110257 o krouzek 13 x 2 5 nbr 70 din 3770 eu origin
    O-ring 13 x 2.5 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_ON004125
    529549 o krouzek 13 x 2 5 mvq 70 din 3770
    O-ring 13 x 2.5 MVQ 70, DIN 3770
    Stock (137 pcs)
    €0,55 excl. VAT
    €0,66

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

    SKL_ON039769
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 13 x 2.5 MVQ 70 FDA red, DIN 3770 EU origin
    Stock (890 pcs)
    €0,14 excl. VAT
    €0,17

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

    SKL_ON040954
    110263 o krouzek 13 x 2 5 fpm 80 din 3770 eu origin
    O-ring 13 x 2.5 FPM 80, DIN 3770 EU origin
    Stock (240 pcs)
    €0,33 excl. VAT
    €0,40

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

    SKL_ON004122
    O-ring 13 x 2.5 FPM 80 brown DIN 3770
    O-ring 13 x 2.5 FPM 80 brown DIN 3770
    On order – within 3 weeks
    €0,33 excl. VAT
    €0,40

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

    SKL_ON040703
    110254 o krouzek 13 x 2 5 fpm 70 brown iso 3601
    O-ring 13 x 2.5 FPM 70 brown, ISO 3601
    On order – within 10 weeks
    €0,24 excl. VAT
    €0,29

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

    SKL_ON004120
    110260 o krouzek 13 x 2 5 epdm 70 din 3770 eu origin
    O-ring 13 x 2.5 EPDM 70, DIN 3770 EU origin
    Stock (595 pcs)
    €0,07 excl. VAT
    €0,08

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

    SKL_ON004118
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 13 x 2.2 NBR 70, DIN 3770 EU origin
    Stock (1126 pcs)
    €0,11 excl. VAT
    €0,13

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

    SKL_ON040953
    110245 o krouzek 13 x 2 15 nbr 70 din 3770 eu origin
    O-ring 13 x 2.15 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks (2 pcs)
    €0,40 excl. VAT
    €0,49

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

    SKL_ON004115
    110224 o krouzek 13 x 2 nbr 90 din 3770 eu origin
    O-ring 13 x 2 NBR 90, DIN 3770 EU origin
    Stock (947 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON004113
    110221 o krouzek 13 x 2 nbr 70 iso 3601
    O-ring 13 x 2 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_ON004111
    234509 1 o krouzek 13 x 2 nbr 70 din 3770 eu origin
    O-ring 13 x 2 NBR 70, DIN 3770, EU origin
    Stock (2300 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON038842
    110236 o krouzek 13 x 2 mvq 70 din 3770 eu origin
    O-ring 13 x 2 MVQ 70, 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_ON004108
    529522 o krouzek 13 x 2 mvq 70 din 3770
    O-ring 13 x 2 MVQ 70, DIN 3770
    Stock (580 pcs)
    €0,10 excl. VAT
    €0,12

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

    SKL_ON039760
    110233 o krouzek 13 x 2 hnbr 70 green din 3770 made in taiwan
    O-ring 13 x 2 HNBR 70 green, DIN 3770 Made in Taiwan
    Stock (70 pcs)
    €2,38 excl. VAT
    €2,88

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

    SKL_ON004107
    110242 o krouzek 13 x 2 hnbr 70 green din 3770 eu origin
    O-ring 13 x 2 HNBR 70 green, DIN 3770 EU origin
    Stock (1 pcs)
    €2,46 excl. VAT
    €2,98

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

    SKL_ON004106
    110239 o krouzek 13 x 2 fpm 90 din 3770 eu origin
    O-ring 13 x 2 FPM 90, DIN 3770 EU origin
    On order – within 3 weeks
    €1,45 excl. VAT
    €1,76

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

    SKL_ON004105
    528763 o krouzek 13 x 2 fpm 80 din 3770
    O-ring 13 x 2 FPM 80, DIN 3770
    On order – within 3 weeks
    €0,27 excl. VAT
    €0,33

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

    SKL_ON039507
    565591 o krouzek 13 x 2 fpm 80 brown din 3770
    O-ring 13 x 2 FPM 80 brown, DIN 3770
    Stock (324 pcs)
    €0,27 excl. VAT
    €0,33

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

    SKL_ON040523
    110230 o krouzek 13 x 2 fpm 70 brown iso 3601
    O-ring 13 x 2 FPM 70 brown, ISO 3601
    On order – within 10 weeks
    €0,19 excl. VAT
    €0,23

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

    SKL_ON004102
    110227 o krouzek 13 x 2 epdm 70 din 3770 eu origin
    O-ring 13 x 2 EPDM 70, DIN 3770 EU origin
    Stock (383 pcs)
    €0,05 excl. VAT
    €0,06

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

    SKL_ON004100
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 13 x 1.8 NBR 70, DIN 3770 EU origin
    Stock (2029 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON040952
    O-ring 13 x 1.75 EPDM 70
    O-ring 13 x 1.75 EPDM 70
    Stock (1370 pcs)
    €0,07 excl. VAT
    €0,09

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

    SKL_ON040611
    110218 o krouzek 13 x 1 7 nbr 70 din 3770 eu origin
    O-ring 13 x 1.7 NBR 70, DIN 3770 EU origin
    On order – within 3 weeks
    €1,05 excl. VAT
    €1,27

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

    SKL_ON004070
    110215 o krouzek 13 x 1 5 nbr 90 din 3770 eu origin
    O-ring 13 x 1.5 NBR 90, DIN 3770 EU origin
    Stock (1363 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON004056
    110203 o krouzek 13 x 1 5 nbr 70 iso 3601
    O-ring 13 x 1.5 NBR 70, ISO 3601
    Stock (1860 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON004054
    110209 o krouzek 13 x 1 5 nbr 70 din 3770 eu origin
    O-ring 13 x 1.5 NBR 70, DIN 3770 EU origin
    Stock (1055 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON004053
    527779 o krouzek 13 x 1 5 hnbr 70 green din 3770
    O-ring 13 x 1.5 HNBR 70 green, DIN 3770
    Stock (294 pcs)
    €0,26 excl. VAT
    €0,32

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

    SKL_ON039179
    110212 o krouzek 13 x 1 5 fpm 80 din 3770 eu origin
    O-ring 13 x 1.5 FPM 80, DIN 3770 EU origin
    Stock (400 pcs)
    €0,21 excl. VAT
    €0,26

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

    SKL_ON004050
    228463 o krouzek 13 x 1 5 fpm 70 brown iso 3601
    O-ring 13 x 1.5 FPM 70 brown, ISO 3601
    Stock (141 pcs)
    €0,15 excl. VAT
    €0,18

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

    SKL_ON004048
    110206 o krouzek 13 x 1 5 epdm 70 din 3770 eu origin
    O-ring 13 x 1.5 EPDM 70, DIN 3770 EU origin
    Stock (353 pcs)
    €0,04 excl. VAT
    €0,05

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

    SKL_ON004047
    110200 o krouzek 13 x 1 2 nbr 70 din 3770 eu origin
    O-ring 13 x 1.2 NBR 70, DIN 3770 EU origin
    Stock (667 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON004037
    110188 o krouzek 13 x 1 nbr 70 iso 3601
    O-ring 13 x 1 NBR 70, ISO 3601
    Stock (6632 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON004033
    110191 o krouzek 13 x 1 nbr 70 din 3770 eu origin
    O-ring 13 x 1 NBR 70, DIN 3770 EU origin
    Stock (64 pcs)
    €0,02 excl. VAT
    €0,03

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

    SKL_ON004032

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