FKM 70 O Ring For Sealing
Zhejiang Jiacheng New Material Co., Ltd. is one of the leading manufacturers and suppliers of fkm 70 o ring for sealing in China, also supports customized service. Welcome to wholesale bulk high quality fkm 70 o ring for sealing in stock here from our factory. If you have any enquiry about quotation and free sample, please feel free to email us.
Standard AS568 FKM 70 O-Rings for Chemical and Industrial Sealin
FKM 70 O-Rings (70 Durometer Shore A VitonTM Seals) are the industry standard for hydraulic equipment, automotive fluid systems, and general industrial gear. They provide the best possible balance of mechanical toughness, chemical resistance, and sealing flexibility.
SJK uses premium-grade, 100% virgin fluoroelastomer compounds to produce completely compliant FKM 70 O-Rings that meet AS568 standards. Our Shore A 70 seals are precisely molded to strict dimensional tolerances to prevent fluid extrusion and leakage in medium-to-high pressure dynamic and static housing glands. They are specifically designed to withstand mineral oils, synthetic lubricants, hydrocarbon fuels, and aggressive chemical solvents across temperatures ranging from -20°C to +200°C (-4°F to +392°F).
ASTM D412 Physical Performance Metrics and Technical Specifications
To guaranty constant sealing performance, our black FKM 70 compound is put thru rigorous batch testing in compliance with ASTM and ISO international standards:
Material Composition: 100% Virgin Fluoroelastomer (FKM / Viton™ Type A)
Hardness (ASTM D2240): 70 ± 5 Shore A
Tensile Strength (ASTM D412): ≥ 14.0 MPa (2,030 PSI)
Elongation at Break (ASTM D412): ≥ 180%
Compression Set (ASTM D395 Method B, 22h @ 175°C): ≤ 15%
Operating Temperature Range: -20°C to +200°C (-4°F to +392°F) [Intermittent spikes up to +230°C]
Standard Color: Black, brown, green (Smooth surface, zero flash defects)
FKM 70 O-Rings Standard Size Matrix AS568
To guaranty precise dimensional fit for standard equipment glands, we have a sizable mold inventory for each of the five basic AS568 cross-section (CS) series:
| Series | Cross Section (CS) | Inner Diameters (ID) | Ideal For |
| AS568 000 Series | 0.070" / 1.78 mm | From 0.029" (0.74 mm) [AS568-001] to 5.239" (133.07 mm) [AS568-050] | Miniature fluidic valves, electronic enclosures, and small fuel fittings. |
| AS568 100 Series | 0.103" / 2.62 mm | From 0.237" (6.02 mm) [AS568-110] to 5.737" (145.72 mm) [AS568-163] | Hydraulic cylinders, pneumatic tools, and pump housing flanges. |
| AS568 200 Series | 0.139" / 3.53 mm | From 0.176" (4.47 mm) [AS568-201] to 9.737" (247.32 mm) [AS568-274] | Medium-duty industrial machinery, gearboxes, and pipeline unions. |
| AS568 300 Series | 0.210" / 5.33 mm | From 0.425" (10.79 mm) [AS568-309] to 17.855" (453.52 mm) [AS568-388] | Heavy-duty hydraulic pumps, pressure vessels, and large valve bodies. |
| AS568 400 Series | 0.275" / 6.99 mm | From 4.521" (114.83 mm) [AS568-425] to 25.855" (656.62 mm) [AS568-460] | High-pressure oilfield flanges, large compressors, and heavy industrial machinery. |
(FKM 70 compound is also fully accessible in Japanese JIS B2401 and metric ISO 3601 sizes.)
Tiered Volume Pricing, Quick Fulfillment, and Bulk Ordering
Obtaining large quantities of standard FKM 70 O-rings for production or distribution?
Benefit from our direct-from-manufacturer wholesale rates, reliable batch quality, and high-volume factory manufacturing lines.
Capabilities for Factory Wholesale Supply:
- Standard AS568 Stock Sizes: With a lead time of 24 to 48 hours, they are available for immediate dispatch.
- Production Lead Time: 7–10 Business Days for Custom/Non-Standard Sizes.
- Minimum Order Quantity (MOQ): Flexible bulk packing options (bags, cartons, or private labeling) are available; typical AS568 sizes have a low MOQ of 5 pieces.
- Quality Assurance: For automated assembly lines, a 100% optical sorting inspection is provided upon request.
Get a Free Sample Kit and a Bulk Quote
Get in touch with SJK right now to talk about your pressing sealing issues!
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