ISO 9001:2015 Certified · Nashik, India
Margo Rubber Products moulds O-rings to AS568, ISO 3601, JIS B2401 and DIN 3771 at its ISO 9001:2015 certified plant in Nashik, India — catalogue sizes or cut to print, in AEM, FKM, NBR, EPDM and silicone. Tolerance follows the standard and the section.
View O-Ring Size Chart02 · SPECIFICATION REFERENCE
All dimensions in mm. Shore A ranges are the standard options we mould in each compound. Custom durometers and non-catalogue internal diameters are quoted against your drawing.
| AS568-001 | 0.74 | ±0.08 | 1.02 | ±0.08 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
|---|---|---|---|---|---|---|---|---|---|
| AS568-010 | 6.07 | ±0.08 | 1.78 | ±0.08 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| AS568-102 | 1.24 | ±0.08 | 2.62 | ±0.08 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| AS568-210 | 18.64 | ±0.10 | 3.53 | ±0.10 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| AS568-325 | 37.47 | ±0.13 | 5.33 | ±0.13 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| AS568-437 | 151.77 | ±0.15 | 6.99 | ±0.15 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| DIN 3771 12×2 | 12.00 | ±0.13 | 2.00 | ±0.08 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| DIN 3771 50×5 | 50.00 | ±0.30 | 5.00 | ±0.13 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| JIS B2401 P10 | 9.80 | ±0.14 | 1.90 | ±0.07 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| JIS B2401 P22 | 21.80 | ±0.19 | 2.40 | ±0.07 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| JIS B2401 G45 | 44.40 | ±0.32 | 3.10 | ±0.09 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
| JIS B2401 G90 | 89.40 | ±0.63 | 3.10 | ±0.09 | 50–80 | 60–90 | 40–90 | 40–90 | 30–80 |
Showing 12 of 12 · AS568 is dimensionally equivalent to ISO 3601-1 Series A; DIN 3771 harmonised into Series B · Non-catalogue sizes quoted against your drawing Typical values. See our technical disclaimer.
03 · MATERIAL SELECTION
Each compound has a distinct chemical compatibility profile and temperature ceiling. Name the medium, the operating temperature and the pressure class, and we will tell you which to specify.
Ethylene acrylic elastomer. Our signature compound, supplied to Mahindra & Mahindra for engine and transmission applications. Holds compression-set stability where oil, heat and ozone act together.
Fluorocarbon rubber, the first choice for aggressive chemical environments. Resists petroleum oils, fuels and many solvents at sustained high temperature.
Nitrile butadiene rubber, the general-purpose industry standard. Outstanding resistance to petroleum oils and hydraulic fluids at moderate temperature.
Ethylene propylene diene rubber, the preferred material for water, steam and brake fluid service, with excellent weather and ozone resistance. Not for petroleum oils.
Vinyl methyl silicone, the widest service range of the eight. Biocompatible grades available. Poor abrasion resistance — not a wear part.
Polychloroprene. Balanced properties across weather, refrigerants and moderate oil exposure, and the family we reach for when flame retardancy is specified.
Styrene butadiene rubber. Abrasion resistance at low cost, for static seals in water and mild service. Not for oil or fuel contact.
Polyisoprene. The highest resilience of the eight, specified where a seal also has to damp. Not for oil, fuel or sustained heat.
A PTFE jacket over an FKM or silicone core — the chemical resistance of PTFE with the recovery of an elastomer. Specified where a compound would be attacked but a rigid seal cannot follow the groove.
Viton is a registered trade mark of The Chemours Company. Vamac is a registered trade mark of DuPont. Teflon is a registered trade mark of The Chemours Company.
IN THIS CATEGORY
Each part below is manufactured to customer drawing or to our standard tooling. Compound, hardness and dimensions are set from your specification, and full dimensional data is issued with the quotation.
01
O-Rings · Made to order
02
O-Rings · Made to order
03
O-Rings · Made to order
04
O-Rings · Made to order
05
O-Rings · Made to order
06
O-Rings · Made to order
07
O-Rings · Made to order
08
O-Rings · Made to order
09
O-Rings · Made to order
10
O-Rings · Made to order
11
O-Rings · Made to order
12
O-Rings · Made to order
13
O-Rings · Made to order
14
O-Rings · Made to order
15
O-Rings · Made to order
16
O-Rings · Made to order
17
O-Rings · Made to order
18
O-Rings · Made to order
19
O-Rings · Made to order
20
O-Rings · Made to order
21
O-Rings · Made to order
22
O-Rings · Made to order
23
O-Rings · Made to order
04 · MANUFACTURING STANDARDS
Margo manufactures O-rings to AS568, ISO 3601, JIS B2401 and DIN 3771, covering the four major global catalogues used in fluid power, aerospace, automotive and industrial sealing specifications. Non-catalogue and cut-to-print O-rings are manufactured from approved drawings.
Aerospace Size Standard
United States, defined by SAE International. The dominant standard for North American fluid power and aerospace procurement.
International Metric Standard
Global metric catalogue in three parts covering dimensions (Part 1), tolerances (Part 2) and quality acceptance (Part 3).
Japanese Industrial Standard
Japanese metric series in P, G, V and S size groups, commonly required by Japanese OEM supply chains.
German Industrial Standard
DIN metric catalogue, harmonised into ISO 3601 but still actively called out on German mechanical engineering drawings.
Send the standard reference or the drawing. If your print calls out a series we have not tooled, we cut the tool here.
05 · COMMERCIAL TERMS
Margo produces in bulk against OEM schedules. Tell us the part and the volume and we will quote it. Minimum run is 10,000 pieces per part number, per compound, or quoted against the part where size or complexity sets the economics. Prototype and first-article lots sit outside the minimum and are quoted separately.
Quotation
With feasibility report
48 hrs
Prototype
From an approved drawing
48–72 hrs
Catalogue sizes
Ex-works Nashik, from drawing approval · 2 weeks express
3–4 weeks
Cut-to-print
Tooling lead time quoted per part
3–4 weeks + tooling
Packaging
Bulk reel or blister on request
Poly bag + card label
06 · ENQUIRIES
Send your drawing, standard reference and compound requirement. We reply within one business day, and a quotation with dimensional confirmation and material data follows inside 48 hours.
