--- title: "O-Ring Seal (Series 160)" description: "O-Ring Seal: id 5-100 mm, od 9-114 mm. 12 catalogued sizes with materials and finishes. Technical drawing redraws to any row." url: https://engineeringhardware.com/fastener/cad-svg-159-oring/ source: Engineering Hardware & Fasteners --- # O-Ring Seal (Series 160) Seals · O-Rings 12 catalogued sizes. Pick any row and the technical drawing redraws to it. O-Ring Seal are catalogued in id 5-100 mm, with od 9-114 mm. 12 sizes are held in the table below, and the technical drawing redraws to whichever row you select. - **ID:** 5-100 mm - **OD:** 9-114 mm - **Catalogued sizes:** 12 Dimensions are nominal values from the governing standard. Confirm the tolerance class for your application before ordering. ![O-Ring Seal — ISO / DIN (Series 160) technical product image](https://engineeringhardware.com/wp-content/uploads/2026/06/O-Ring-Seal-—-ISO-DIN-Series-159-—-ISO-DIN.webp) ## Applications & Industries O-Ring Seal are bought for a small number of well-defined jobs. These are the ones we ship them for. Stocked from 5 to 100 (inside diameter). ### Industries that specify O-Ring Seal - **Process & food equipment:** Sealing at joints that are cleaned and inspected. - **Hydraulics & pneumatics:** Static and dynamic sealing in cylinders and valve bodies. ### Typical applications - excluding dust and moisture from a housing - sealing a joint against fluid or air pressure ### Service conditions to specify against - **Sealed joints:** Used where the fixing has to keep water or air out as well as hold — the elastomer, not the fastener, decides service life. Need help matching O-Ring Seal to your application? Send the assembly, the load and the environment with your enquiry and we will specify the size, material and finish against them. ## Technical Drawing Dimensioned line drawing of 5 O-Ring Seal — ISO / DIN (Series 160). Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected. - **Outer diameter d2 (mm):** 9 - **Wire dia (mm):** 2 - **Material:** NBR 70 - **Working temp range:** -30 to +110 C ## Dimensions & Specifications (ISO / DIN) Every row below is a starting point for the customizer above — pick any size and the drawing will redraw to that row. | Inner diameter d1 (mm) | Outer diameter d2 (mm) | Wire dia (mm) | Material | Working temp range | Reference standard | | --- | --- | --- | --- | --- | --- | | 5 | 9 | 2 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 8 | 12 | 2 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 10 | 16 | 3 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 15 | 21 | 3 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 20 | 26 | 3 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 25 | 33 | 4 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 30 | 38 | 4 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 40 | 50 | 5 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 50 | 60 | 5 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 60 | 72 | 6 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 80 | 92 | 6 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | | 100 | 114 | 7 | NBR 70 | -30 to +110 C | ISO 3601 / GB/T 3452 | O-Ring Seal — ISO / DIN (Series 160) are seals manufactured to ISO / DIN. This page lists the full dimensional range with the key specifications engineers need to select and specify them. ## What Are O-Ring Seal — ISO / DIN (Series 160)? O-Ring Seal — ISO / DIN (Series 160) are seals defined by ISO / DIN. They are selected by inside diameter and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment. ## CAD Source Reference This page is generated from an original native CAD part model (SolidWorks .SLDPRT) of the o-ring seal — iso / din (series 160) family maintained by our engineering team, covering 12 recorded size configurations. The technical drawing shown above is rebuilt parametrically from the dimensional table, so it always reflects the exact size and configuration you select. Native CAD files (STEP / SLDPRT) can be supplied with your quotation on request. ## Materials & Finishes O-rings and seals are specified by elastomer, not by steel grade: NBR (nitrile) for mineral oil and hydraulic service, FKM for higher temperature and aggressive chemistry, EPDM for water, steam and weathering, silicone for a wide temperature range in static duty, and PTFE where chemical resistance outweighs elastic recovery. Specify the compound, the hardness in Shore A and the temperature range alongside the dimensions. ## Pricing O-Ring Seal — ISO / DIN (Series 160) are supplied to order. Pricing starts from approximately US$0.050 per piece for standard sizes in standard nitrile (NBR) 70 Shore A; final pricing depends on size, material, finish and order quantity (MOQ applies). Submit your exact configuration with the quote form above. Custom manufacturing · Made to drawing ## Need a o-ring seal outside the standard range? A special seal is almost always a compound change rather than a size change — the same dimensions in a material that survives the medium. Minimum order from 2,000 pieces; samples within 7 days of drawing approval. [Custom seal manufacturing](https://engineeringhardware.com/custom/seals/)[Send a drawing](https://engineeringhardware.com/custom/seals/#rfq) Inside the plant ## Manufactured in our own plant This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided. 1. ![Wire rod feeding into a cold heading machine](https://engineeringhardware.com/wp-content/uploads/2026/08/09-wire-rod-feed-cold-heading-machine.webp) 01 **Cold heading** Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail. Head dimensions and under-head radius checked at set-up and per shift. 2. ![Thread rolling machine producing bolt threads](https://engineeringhardware.com/wp-content/uploads/2026/08/03-thread-rolling-machine-bolt-production.webp) 02 **Thread rolling** Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch. Go / no-go ring gauges to ISO 965 tolerance class 6g. 3. ![Baskets of bolts staged for heat treatment](https://engineeringhardware.com/wp-content/uploads/2026/08/05-heat-treatment-baskets-black-bolts.webp) 03 **Heat treatment** Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it. Core hardness and tensile tested per lot to ISO 898-1. 4. ![Zinc plated bolts in a treatment basket](https://engineeringhardware.com/wp-content/uploads/2026/08/23-zinc-plated-bolts-treatment-basket.webp) 04 **Surface treatment** Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list. Coating thickness and neutral salt spray hours to ISO 9227. ## Frequently Asked Questions ### What standard are O-Ring Seal — ISO / DIN (Series 160) manufactured to? O-Ring Seal — ISO / DIN (Series 160) are manufactured to ISO / DIN. The dimensional values on this page follow that standard. ### What is the size range of O-Ring Seal — ISO / DIN (Series 160)? The table on this page lists 12 sizes for O-Ring Seal — ISO / DIN (Series 160), ranging from 5 to 100. Sizes outside the table can be quoted on request. ### In which materials are O-Ring Seal — ISO / DIN (Series 160) supplied? O-Ring Seal — ISO / DIN (Series 160) are supplied in NBR (nitrile), FKM, EPDM, silicone and PTFE, selected by fluid and temperature, with finishes including zinc plating, hot-dip galvanizing and black oxide. Choose material and finish to suit the load and the service environment for O-Ring Seal — ISO / DIN (Series 160). ### How do I request a quotation? Use the parametric drawing on this page to set the exact configuration (size, material, finish) and click "Request this configuration" — a specialist from Engineering Hardware will respond within one business day.