Customer support:558 694 401eshop@bohemiaseal.cz
    Currency
    EUR
    Language
    English
    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

    75 items total

    List of products

    229612 o krouzek 8 x 5 nbr 70 iso 3601
    O-ring 8 x 5 NBR 70, ISO 3601
    Stock (3894 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON029971
    108913 o krouzek 8 x 5 nbr 70 din 3770 eu origin
    O-ring 8 x 5 NBR 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_ON029970
    108916 o krouzek 8 x 5 fpm 80 din 3770 eu origin
    O-ring 8 x 5 FPM 80, DIN 3770 EU origin
    Stock (108 pcs)
    €0,83 excl. VAT
    €1

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

    SKL_ON029968
    529156 o krouzek 8 x 4 nbr 90 din 3770
    O-ring 8 x 4 NBR 90, DIN 3770
    Stock (870 pcs)
    €0,08 excl. VAT
    €0,10

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

    SKL_ON039638
    108898 o krouzek 8 x 4 nbr 70 iso 3601
    O-ring 8 x 4 NBR 70, ISO 3601
    On order – within 10 weeks
    €0,03 excl. VAT
    €0,04

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

    SKL_ON029844
    108904 o krouzek 8 x 4 nbr 70 din 3770 eu origin
    O-ring 8 x 4 NBR 70, DIN 3770 EU origin
    Stock (686 pcs)
    €0,07 excl. VAT
    €0,08

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

    SKL_ON029843
    108910 o krouzek 8 x 4 mvq 70 din 3770 eu origin
    O-ring 8 x 4 MVQ 70, DIN 3770 EU origin
    Stock (529 pcs)
    €0,21 excl. VAT
    €0,26

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

    SKL_ON029841
    108907 o krouzek 8 x 4 fpm 80 din 3770 eu origin
    O-ring 8 x 4 FPM 80, DIN 3770 EU origin
    Stock (113 pcs)
    €0,42 excl. VAT
    €0,51

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

    SKL_ON029840
    108901 o krouzek 8 x 4 epdm 70 din 3770 eu origin
    O-ring 8 x 4 EPDM 70, DIN 3770 EU origin
    Stock (210 pcs)
    €0,35 excl. VAT
    €0,42

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

    SKL_ON029836
    O-ring 8 x 3.5 NBR 90 DIN 3770
    O-ring 8 x 3.5 NBR 90 DIN 3770
    Stock (1080 pcs)
    €0,13 excl. VAT
    €0,16

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

    SKL_ON040856
    108889 o krouzek 8 x 3 5 nbr 70 iso 3601
    O-ring 8 x 3.5 NBR 70, ISO 3601
    Stock (762 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON029742
    108895 o krouzek 8 x 3 5 fpm 80 din 3770 eu origin
    O-ring 8 x 3.5 FPM 80, DIN 3770 EU origin
    Stock (145 pcs)
    €0,43 excl. VAT
    €0,52

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

    SKL_ON029739
    108892 o krouzek 8 x 3 5 epdm 70 din 3770 eu origin
    O-ring 8 x 3.5 EPDM 70, DIN 3770 EU origin
    Stock (169 pcs)
    €0,09 excl. VAT
    €0,11

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

    SKL_ON029736
    108877 o krouzek 8 x 3 nbr 90 din 3770 eu origin
    O-ring 8 x 3 NBR 90, DIN 3770 EU origin
    Stock (1280 pcs)
    €0,07 excl. VAT
    €0,08

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

    SKL_ON029727
    108868 o krouzek 8 x 3 nbr 70 iso 3601
    O-ring 8 x 3 NBR 70, ISO 3601
    Stock (1484 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON029725
    108886 o krouzek 8 x 3 nbr 50 din 3770 eu origin
    O-ring 8 x 3 NBR 50, DIN 3770 EU origin
    Stock (8 pcs)
    €0,59 excl. VAT
    €0,71

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

    SKL_ON029723
    108883 o krouzek 8 x 3 mvq 70 red fda din 3770 eu origin
    O-ring 8 x 3 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_ON029720
    231828 1 o krouzek 8 x 3 mvq 70 fda din 3770
    O-ring 8 x 3 MVQ 70 FDA, DIN 3770
    Stock (105 pcs)
    €0,12 excl. VAT
    €0,14

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

    SKL_ON038286
    108874 o krouzek 8 x 3 fpm 80 din 3770 eu origin
    O-ring 8 x 3 FPM 80, DIN 3770 EU origin
    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_ON029719
    109387 109387 o krouzek 10 x 2 nbr 3167 eu origin
    O-ring 8 x 3 FPM 80 green, DIN 3770 EU origin
    Stock (91 pcs)
    €0,44 excl. VAT
    €0,53

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

    SKL_ON040925
    108871 o krouzek 8 x 3 epdm 70 din 3770 eu origin
    O-ring 8 x 3 EPDM 70, DIN 3770 EU origin
    Stock (176 pcs)
    €0,07 excl. VAT
    €0,08

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

    SKL_ON029715
    O-ring 8 x 3 CR 80, DIN 3770 EU origin
    O-ring 8 x 3 CR 80, DIN 3770 EU origin
    Stock (140 pcs)
    €0,99 excl. VAT
    €1,20

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

    SKL_ON029714
    108859 o krouzek 8 x 2 5 nbr 90 din 3770 eu origin
    O-ring 8 x 2.5 NBR 90, DIN 3770 EU origin
    Stock (711 pcs)
    €0,05 excl. VAT
    €0,06

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

    SKL_ON029585
    108850 o krouzek 8 x 2 5 nbr 70 iso 3601
    O-ring 8 x 2.5 NBR 70, ISO 3601
    Stock (9240 pcs)
    €0,02 excl. VAT
    €0,02

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

    SKL_ON029584
    231981 1 o krouzek 8 x 2 5 nbr 70 din 3770
    O-ring 8 x 2.5 NBR 70, DIN 3770
    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_ON038337
    108862 o krouzek 8 x 2 5 mvq 70 din 3770 eu origin
    O-ring 8 x 2.5 MVQ 70, DIN 3770 EU origin
    On order – within 3 weeks
    €0,08 excl. VAT
    €0,10

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

    SKL_ON029582
    108865 o krouzek 8 x 2 5 fpm 80 din 3770 eu origin
    O-ring 8 x 2.5 FPM 80, DIN 3770 EU origin
    On order – within 3 weeks
    €0,26 excl. VAT
    €0,31

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

    SKL_ON029579
    565573 o krouzek 8 x 2 5 fpm 75 green din 3770
    O-ring 8 x 2.5 FPM 75 green, DIN 3770
    Stock (191 pcs)
    €0,67 excl. VAT
    €0,81

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

    SKL_ON040517
    108853 o krouzek 8 x 2 5 fpm 70 brown iso 3601
    O-ring 8 x 2.5 FPM 70 brown, ISO 3601
    Stock (137 pcs)
    €0,18 excl. VAT
    €0,22

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

    SKL_ON029576
    108856 o krouzek 8 x 2 5 epdm 70 din 3770 eu origin
    O-ring 8 x 2.5 EPDM 70, DIN 3770 EU origin
    Stock (655 pcs)
    €0,06 excl. VAT
    €0,07

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

    SKL_ON029575
    108847 o krouzek 8 x 2 4 fpm 80 din 3770 eu origin
    O-ring 8 x 2.4 FPM 80, DIN 3770 EU origin
    Stock (250 pcs)
    €0,29 excl. VAT
    €0,35

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

    SKL_ON029571
    529228 o krouzek 8 x 2 2 nbr 90 din 3770
    O-ring 8 x 2.2 NBR 90, DIN 3770
    Stock (1151 pcs)
    €0,07 excl. VAT
    €0,08

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

    SKL_ON039662
    108844 o krouzek 8 x 2 2 nbr 70 din 3770 eu origin
    O-ring 8 x 2.2 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_ON029537
    231978 1 o krouzek 8 x 2 2 fpm 80 din 3770
    O-ring 8 x 2.2 FPM 80, DIN 3770
    Stock (68 pcs)
    €0,25 excl. VAT
    €0,30

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

    SKL_ON038336
    231975 1 o krouzek 8 x 2 2 epdm 70 peroxidovany din 3770
    O-ring 8 x 2.2 EPDM 70 peroxide cured, DIN 3770
    Stock (651 pcs)
    €0,12 excl. VAT
    €0,14

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

    SKL_ON038335
    108841 o krouzek 8 x 2 1 nbr 70 din 3770 eu origin
    O-ring 8 x 2.1 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_ON029524
    108832 o krouzek 8 x 2 pu 029281 9 pu eu origin
    O-ring 8 x 2 PU, 029281.9 PU EU origin
    Stock (76 pcs)
    €0,38 excl. VAT
    €0,46

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

    SKL_ON029523
    229600 o krouzek 8 x 2 nbr 90 din 3770 eu origin
    O-ring 8 x 2 NBR 90, DIN 3770 EU origin
    Stock (1047 pcs)
    €0,05 excl. VAT
    €0,06

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

    SKL_ON029521
    234773 1 o krouzek 8 x 2 nbr 70 iso 3601
    O-ring 8 x 2 NBR 70, 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_ON038930
    108820 o krouzek 8 x 2 nbr 70 din 3770 eu origin
    O-ring 8 x 2 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_ON029518
    229597 o krouzek 8 x 2 mvq 70 red iso 3601
    O-ring 8 x 2 MVQ 70 red, ISO 3601
    Stock (>10000 pcs)
    €0,05 excl. VAT
    €0,06

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

    SKL_ON029515
    229594 o krouzek 8 x 2 mvq 70 red fda din 3770 eu origin
    O-ring 8 x 2 MVQ 70 red FDA, DIN 3770 EU origin
    Stock (383 pcs)
    €0,21 excl. VAT
    €0,26

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

    SKL_ON029514
    231972 1 o krouzek 8 x 2 hnbr 70 green din 3770
    O-ring 8 x 2 HNBR 70 GREEN, DIN 3770
    Stock (794 pcs)
    €0,58 excl. VAT
    €0,70

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

    SKL_ON038334
    108835 o krouzek 8 x 2 fpm 90 brown din 3770 eu origin
    O-ring 8 x 2 FPM 90 brown, DIN 3770 EU origin
    Stock (3 pcs)
    €2,67 excl. VAT
    €3,23

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

    SKL_ON029511
    108826 o krouzek 8 x 2 fpm 80 din 3770 eu origin
    O-ring 8 x 2 FPM 80, DIN 3770 EU origin
    Stock (232 pcs)
    €0,25 excl. VAT
    €0,30

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

    SKL_ON029510
    108823 o krouzek 8 x 2 fpm 70 brown iso 3601
    O-ring 8 x 2 FPM 70 brown, ISO 3601
    On order – within 10 weeks
    €0,13 excl. VAT
    €0,16

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

    SKL_ON029508
    O-ring 8 x 2 FPM 70 brown DIN 3770
    O-ring 8 x 2 FPM 70 brown DIN 3770
    Stock (4 pcs)
    €0,23 excl. VAT
    €0,28

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

    SKL_ON040663
    108838 o krouzek 8 x 2 epdm 70 din 3770 eu origin
    O-ring 8 x 2 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_ON029505
    108829 o krouzek 8 x 2 epdm 70 din 3770 eu origin
    O-ring 8 x 2 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_ON029507
    O-ring 8 x 2 EPDM 70 FDA peroxide
    O-ring 8 x 2 EPDM 70 FDA peroxide
    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_ON040637
    108817 o krouzek 8 x 1 9 nbr 90 jis b 2401 eu origin p8 1b
    O-ring 8 x 1.9 NBR 90, JIS B 2401 EU origin, P8 1B
    Stock (287 pcs)
    €0,40 excl. VAT
    €0,49

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

    SKL_ON029426
    108814 o krouzek 8 x 1 9 nbr 70 din 3770 eu origin
    O-ring 8 x 1.9 NBR 70, DIN 3770 EU origin
    Stock (182 pcs)
    €0,03 excl. VAT
    €0,04

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

    SKL_ON029425
    560548 o krouzek 8 x 1 9 mvq 70 fda red din 3770
    O-ring 8 x 1.9 MVQ 70 FDA red, DIN 3770
    Stock (1100 pcs)
    €0,17 excl. VAT
    €0,20

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

    SKL_ON040118
    108811 o krouzek 8 x 1 8 nbr 70 din 3770 eu origin
    O-ring 8 x 1.8 NBR 70, DIN 3770 EU origin
    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_ON029414

    Listing controls

    75 items total
    Top
    Fast delivery
    Fast delivery
    Optimized Inventory
    Guaranteed quality
    Guaranteed quality
    We cooperate with renowned manufacturers all over the world
    Technical support available
    Technical support available
    We cooperate with manufacturers' engineers to solve technical problems
    test
    Shoptet PremiumCreated by Shoptet Premium Copyright 2026 Bohemia Seal s.r.o.. All rights reserved. Edit cookie settings