AN6230 Silicone O-rings
Manufacturer & Custom Solutions
AN6230 Silicone O-rings
ZSR Silicone produces AN6230 silicone O-rings in the full range of large-diameter sizes. For fixed cylindrical sealing applications that call for this specific 3.53 mm cross-section, we offer a variety of silicone materials to ensure a proper fit and long-lasting seal for your equipment.

FDA 21 CFR 177.2600
Rubber Articles Intended for Repeated Use
LFGB 30&31
EU Food Contact Materials
USP Class VI / ISO 10993
Biocompatibility of Medical Devices
RoHS / REACH
Environmental Compliance
UL 94
Flammability of Plastic Materials
Built to Your Exact Spec
Custom Silicone O-ring Options
| Image | Product | Type | Short Info | Action |
|---|---|---|---|---|
| ISO 3601 Metric Silicone O-Rings | Standard & Size | Metric silicone O-rings manufactured to ISO 3601 dimensions. Fits international equipment groove standards. | View Details | |
| ISO 6149 Metric Silicone O-Rings | Standard & Size | Metric O-rings designed for hydraulic and pneumatic fluid power sealing applications under ISO 6149 standards. | View Details | |
| BS 1806 Silicone O-rings | Standard & Size | British Standard inch-size silicone O-rings. Common in UK and Commonwealth industrial equipment. | View Details | |
| DIN 3771 Silicone O-rings | Standard & Size | German metric standard O-rings for hydraulic and pneumatic sealing in European machinery. | View Details | |
| Custom Molded Silicone O-rings | Standard & Size | Custom-shaped silicone O-rings molded to your exact drawing or sample. No standard size limitations. | View Details | |
| AS568 Silicone O-rings | Standard & Size | Inch-size silicone O-rings that follow the AS568 standard. Widely used in North American machinery and hydraulic systems. | View Details | |
| AN6227 Silicone O-rings | Standard & Size | Aerospace-standard O-rings with small cross-section. Used in aviation and military-grade sealing. | View Details | |
| AN6230 Silicone O-rings | Standard & Size | Aerospace-standard O-rings specified under AN6230 for aviation and military-grade sealing. | View Details | |
| JIS B2401 Silicone O-Ring | Standard & Size | Japanese industrial standard O-rings commonly used in Asian-manufactured machinery and automotive equipment. | View Details | |
| FDA Food Grade Silicone O-Rings | Grade | Food-safe silicone O-rings compliant with FDA regulations. Safe for repeated food contact. | View Details | |
| Industrial Grade Silicone O-ring | Grade | General-purpose silicone O-rings for industrial sealing. Cost-effective with reliable performance. | View Details | |
| Medical Grade Silicone O-ring | Grade | Biocompatible silicone O-rings for medical devices. Passes USP Class VI and supports sterilization. | View Details | |
| Oil-Resistant / Fuel-Resistant Silicone O-Rings | Special Function | Modified silicone O-rings that resist swelling in oils, fuels and petroleum-based fluids. | View Details | |
| Metal Detectable Silicone O-Rings | Special Function | Food-safe silicone O-rings with metal-detectable additives. Protects production lines from contamination. | View Details | |
| High Temperature / Heat Resistant Silicone O-Rings | Special Function | Silicone O-rings that stay flexible at temperatures above 200°C. For ovens, engines and furnaces. | View Details | |
| VMQ Silicone O-Rings | Materials | Heat and cold-resistant silicone O-rings for food, medical, automotive, and industrial applications. | View Details | |
| Fiberglass Reinforced Silicone O-rings | Materials | High-strength silicone O-rings reinforced with fiberglass fabric. Withstands extreme heat and pressure. | View Details | |
| HCR / HTV / Solid Silicone Rubber O-rings | Materials | Durable solid silicone rubber O-rings made by compression molding. The standard choice for general sealing. | View Details | |
| Liquid Silicone Rubber (LSR) O-rings | Materials | Injection-molded liquid silicone rubber O-rings with tight tolerances and clean surfaces. Ideal for high-volume production. | View Details | |
| Platinum Cured Silicone O-rings | Materials | Ultra-clean silicone O-rings cured with platinum catalyst. Lower extractables for food and medical use. | View Details | |
| Fluorosilicone (FVMQ) O-rings | Materials | Fuel and oil-resistant silicone O-rings for aerospace, automotive and chemical applications. | View Details | |
| Transparent / Clear Silicone O-rings | Color | See-through silicone O-rings for visual inspection and clean-looking medical or food equipment. | View Details | |
| Black / White Silicone O-Rings | Color | Standard black and white silicone O-rings. The most common colors for industrial and food-grade applications. | View Details | |
| Pantone Colors Silicone O-rings | Color | Silicone O-rings in any Pantone color for branding, color-coding or aesthetic requirements. | View Details | |
| Custom Colors Silicone O-rings | Color | Silicone O-rings matched to your exact color sample or specification. | View Details |
Simple AN6230 Silicone O-rings Size Chart
AN6230 Standard No. Range | CS (mm) | ID Range (mm) | OD Range (mm) | CS (inch) | ID Range (inch) | OD Range (inch) |
|---|---|---|---|---|---|---|
AN6230-1~52 | 3.53 | 40.87 ~ 253.59 | 47.93 ~ 260.65 | 0.139 | 1.609 ~ 9.984 | 1.887 ~ 10.262 |
What is AN6230 Standard?
AN 6230 is an O-ring size standard based on the US military (MIL) specification. It was originally created as an aircraft O-ring series, and it is mainly used for fixed sealing on cylindrical surfaces in a wide range of equipment.
All AN 6230 O-rings share the same cross-sectional thickness (3.53 mm wire diameter), with sizes ranging from AN 6230-1 to AN 6230-52 to cover large-diameter sealing needs.
Every AN 6230 size is exactly the same as the corresponding size in the AS568 standard, so the two can be used interchangeably.
ZSR Silicone manufactures silicone O-rings that fully match the AN 6230 standard sizes. We offer these O-rings in a variety of silicone materials to meet different industry needs, giving your equipment reliable sealing performance.
