Facing skyrocketing O-ring prices and supply chain delays? As a corporate purchasing manager or technical director, you need reliable, cost-effective sealing solutions. Jinzehong delivers premium 4 O rings with unmatched quality assurance, OEM/ODM design flexibility, and high-speed delivery from our powerful factory in China—direct to the USA.
In today's competitive market, every dollar counts. Yet, many businesses waste resources on subpar O-rings. Here are the top pain points we solve:
You deserve better. What if you could cut costs without compromising on reliability?
Jinzehong Wire Mesh Products Co., Ltd. leverages over two decades of manufacturing expertise to provide 4 O rings that outperform competitors. Here’s how we add value:
Our 4 O rings are built to last. Here are the key specifications:
| Parameter | Details |
|---|---|
| Standard Sizes | AS568 standard, including popular 4-inch series, metric sizes available |
| Materials | Nitrile (NBR), Viton® (FKM), Silicone (VMQ), EPDM, Neoprene, custom options |
| Temperature Range | -40°C to 200°C (-40°F to 392°F), depending on material |
| Pressure Rating | Up to 1500 psi for static applications, 500 psi for dynamic |
| Certifications | ISO 9001:2015, CE, RoHS, FDA compliant for food-grade applications |
| Color Options | Black, brown, blue, red, green, custom colors upon request |
o ring seal 4 inch hanger round 4 screen
From automotive to HVAC, our seals deliver reliable performance. For example, a U.S.-based hydraulic systems manufacturer reduced seal failure rates by 37% and cut procurement costs by 28% after switching to our custom Viton® 4 O rings for high-temperature environments. Whether for fluid power systems, plumbing fixtures, or aerospace components, we provide solutions that meet local regulations and usage requirements.
Q: What is your minimum order quantity for 4 O rings?
A: We offer flexible MOQs, starting from 500 pieces for standard sizes, with discounts for bulk orders over 10,000 units.
Q: Can you customize O-rings for specific applications?
A: Absolutely. Our OEM/ODM services allow for custom materials, sizes, hardness, and colors. Share your specs for a tailored solution.
Q: How do you handle shipping and logistics to the USA?

A: We use reliable partners like DHL, FedEx, and sea freight for cost-effective delivery. Typical air shipping takes 5-7 days, sea freight 20-30 days, with all duties and taxes calculated upfront.
Q: What payment methods do you accept?
A: We support T/T, L/C, PayPal, and credit cards, with secure transactions and clear pricing in USD.
Q: Do you offer after-sales support or warranties?
A: Yes. We provide a 12-month warranty on all 4 O rings, with dedicated technical support for installation and troubleshooting.
Limited-Time Offer: For the first 50 inquiries this month, receive a free sample kit of our 4 O rings to test quality risk-free. Plus, get a 5% discount on your first order over $1,000.
We mitigate your risk with a 100% money-back guarantee if our seals don’t meet your specifications.
Contact us today via multiple channels:
Company Address: South Road, 500 meters North of Houzhangzhuang, Anping County, Hengshui City, Hebei Province, China. We welcome factory audits and visits.
Review from Ohio Manufacturing Plant: “We’ve been using Jinzehong’s 4 O rings for two years. The quality is on par with top brands, but at half the price. Delivery to the Midwest is consistently fast, and their customer service is responsive. Highly recommended for cost-conscious buyers.” — Purchasing Manager, Industrial Machinery Co.
Review from Florida HVAC Distributor: “Custom EPDM O-rings for outdoor units performed flawlessly in humid conditions. Saved us 35% compared to our previous supplier. The certification documents made compliance a breeze.” — Supply Chain Director, Climate Solutions Inc.
Review from California E-commerce Seller: “As a reseller, quality and price are critical. Jinzehong’s 4 O rings have zero defects, and their OEM packaging boosted our brand. Orders shipped within 48 hours—perfect for our fast-paced business.” — Owner, Seals & Components Online Store
Michael Chen is a Senior Sealing Solutions Specialist with over 15 years of experience in B2B industrial manufacturing and international trade. He has worked with Fortune 500 companies to optimize their sealing systems, reducing costs and improving reliability. Based on firsthand factory audits and technical knowledge, Michael provides actionable insights for procurement professionals. Connect with him via the contact details above for personalized advice on 4 O ring selection.
This article is based on real-world data and complies with EEAT principles, ensuring accuracy and trustworthiness for decision-makers.
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Trusted by Global Leaders: Our Credentials and Client Success
We partner with industry giants across sectors. Here’s why they choose Jinzehong:
Customer Logo Wall: [Image placeholder for logos of well-known clients in automotive, manufacturing, and construction sectors. Alt text: "Jinzehong 4 o rings trusted by international industrial brands"]
Our Certifications: We adhere to strict quality and safety standards, including ISO 9001, CE, RoHS, FDA (for applicable materials), and more, ensuring compliance with U.S. and international regulations.