Ever spent hours hunting for the perfect o’rings, only to worry if they’ll really hold up when it counts? You’re not alone. Choosing the right supplier isn’t just about cost—it can make or break your equipment’s performance. Finding a reliable o’ring manufacturer means peace of mind, fewer replacements, and smoother operations. Imagine trusting every seal, every time. Ready to discover which o’ring factories truly deliver? Let’s dig in and find the best fit for your needs!

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The O-Ring Store LLC, We make getting O-Rings easy!

Product Details:
The O-Ring Store supplies a wide range of O-Rings, hydraulic seals, O-Ring kits, metric O-Rings, and custom seal solutions. They offer O-Rings in materials such as Buna-N (Nitrile), Viton (FKM), Silicone, EPDM, PTFE, and others. The store also provides a selection of o-ring kits, cord stock, backup rings, and assorted seal-related accessories for industrial applications.

Technical Parameters:
– O-Rings available in standard AS568 sizes as well as metric sizes
– Material options include Buna-N (Nitrile), Viton (FKM), Silicone, EPDM, and PTFE
– Temperature ranges depend on material type, e.g., Viton up to 400°F (204°C),
– Durometer hardness options typically 70, 75, 90 Shore A

Application Scenarios:
– Hydraulic and pneumatic equipment sealing
– Automotive, aerospace, and marine sealing applications
– General industrial machinery maintenance
– Food & beverage and medical-grade sealing (with appropriate material selection)

Pros:
– Wide selection of O-Ring materials and sizes available for immediate shipment
– Custom O-Ring fabrication options for specific requirements
– Bulk discounts and O-Ring kits for cost-effective procurement
– Technical support and easy online ordering process

Cons:
– Special materials or custom orders may have longer lead times
– May require technical knowledge to select the correct O-Ring material and size

Home – OringsUSA

Product Details:
OringsUSA specializes in a broad selection of O-rings and sealing solutions, including ASTM O-rings, Mil-Spec O-rings, hydraulic seals, custom-molded parts (such as caps, stoppers, sheets, plugs, grommets, grips), and O-ring kits. They also offer engineering resources, consulting, and material compatibility and selection support.

Technical Parameters:
– ASTM and Mil-Spec compliance for O-rings
– Products offered in various materials (e.g., internally lubed, NSF/FDA/UL
– Specifications include hardness, tensile strength, permeation rate, shelf life,
– Size charts, gland design guidance, and tolerance resources available

Application Scenarios:
– Automotive industry
– Air and gas systems
– Fire suppression equipment
– Hydraulic equipment
– Medical devices
– Military applications
– Paintball/paintgun equipment
– Scuba and underwater applications

Pros:
– Comprehensive selection of standard and custom sealing products
– Compliance with recognized industry standards (ASTM, Mil-Spec)
– Technical engineering support and resources for product selection and design
– Products available for specialized needs (food-grade, radiation-resistant,

Cons:
– Technical specifics about product performance and material properties not
– No direct mention of minimum order quantities or lead times

O-Ring Supplier – Order High Performance & Custom O-Rings Fast

Product Details:
Marco Rubber offers an extensive range of o-rings in standard and custom sizes, made from a broad selection of materials (including BUNA-N/Nitrile), available for both commodity and specialty applications. The company claims to have the world’s largest O-ring inventory with same-day shipping for in-stock products and provides custom solutions with various compliance and functional options.

Technical Parameters:
– Material options include BUNA-N (NBR) Nitrile in several grades and colors,
– Temperature resistance for listed BUNA-N compounds ranges from -65°F (-54°C) to
– Specialty features available such as FDA compliance (21 CFR 177.2600), metal
– Same-day shipping for in-stock items and expedited sourcing/production for

Application Scenarios:
– General industrial sealing where cost and rapid delivery are important.
– Food contact and some medical uses requiring FDA compliant materials.
– Military and aerospace applications requiring Mil-spec qualification.
– Situations needing custom solutions: rough/warped glands, low closure force,

Pros:
– Large, in-stock selection with guaranteed same-day shipping for standard items.
– Extensive material, size, color, and compliance customization options, often
– Ability to handle urgent and custom orders through integrated worldwide
– Expert support and material selection guides to help identify optimal sealing

Cons:
– Custom o-rings may have higher upfront costs than standard solutions (though
– Performance data is general and customers are responsible for verifying
– Quoted temperature ranges are approximations for dry air only and may differ

O-Ring Manufacturer – Stock & Custom O-Ring Design | Captain O-Ring LLC

Product Details:
Captain O-Ring LLC manufactures and supplies standard and custom o-rings, custom rubber and plastic parts, o-ring kits, kitting and assembly services, and specialized o-rings and parts for niche applications such as paintball, scuba, and hydraulic equipment. They offer colored and color-coded o-rings, and supply both bulk and kit formats.

Technical Parameters:
– All materials and durometers available (including Buna Nitrile, Viton,
– Virtually all standard o-ring sizes available; custom sizes and runs supported
– No or low mold/tooling charges due to on-hand molds
– ISO9001:2015 certified manufacturing

Application Scenarios:
– Paintball markers and air guns (o-ring kits, maintenance accessories)
– Scuba diving equipment (o-ring rebuild kits, bulk o-rings)
– Hydraulic equipment and industrial applications
– General custom rubber and plastic part requirements across industries

Pros:
– Competitive pricing comparable to overseas suppliers while maintaining American
– Quick lead times, short turnaround for both stock and custom orders
– Extensive range of materials, sizes, colors, and custom options
– No mold fees for most standard o-ring sizes

Cons:
– Limited detailed technical parameters (like pressure/temperature ratings)
– Specific performance data or certifications for niche/extreme applications not

O-Rings | McMaster-Carr

Product Details:
McMaster-Carr offers O-rings that are used primarily for sealing applications in various systems and components, available in both inch and metric sizes. The website provides a range of filtering options by inner diameter (ID), showcasing various specific measurements to match customer needs.

Technical Parameters:
– Available systems of measurement: Inch, Metric
– Inner diameter (ID) options include sizes like 0.029″, 0.042″, 0.049″, 0.056″,
– Product filtering by ID for precise sizing

Application Scenarios:
– Used for sealing applications in machinery, plumbing, and hydraulic components
– Suitable for maintenance, repair, and OEM (original equipment manufacturer)

Pros:
– Wide variety of size options for diverse applications
– Both inch and metric sizing for compatibility with international standards
– Quick customer service response time (within an hour via email)

Cons:
– Limited technical specifications and material details provided directly on the
– No clear information about chemical or temperature compatibility

O-Rings West | O-Ring Supplier & Distributor of Standard & Custom O-Rings

Product Details:
O-Rings West supplies over 50 million standard and metric O-rings as well as custom molded rubber products such as cord stock, backup rings, square rings, quad rings, x-rings, and Teflon/PTFE encapsulated and machined parts. They offer authorized Parco® distributor products, FDA/NSF/UL certified O-rings, vulcanized and custom-sized/colored O-rings, and support low tooling costs for custom molded parts. Business-to-business sales only, with a $30 per line item minimum.

Technical Parameters:
– Wide material selection: Nitrile (Buna-N), EPDM, Silicone, Viton (FKM),
– Standard-size O-rings: Black Nitrile 70/90, Brown/Black Viton 75, Black EPDM 70
– Metric O-rings: Black Nitrile 70, Black Viton 75. Special materials (Aflas 80,
– Custom molded parts: Capable of compression, transfer, and injection molding in

Application Scenarios:
– Aerospace and military systems
– Medical, healthcare, and pharmaceutical equipment
– Automotive, marine, transportation, and manufacturing machinery
– Electronics, semiconductors, agriculture, filtration, construction, and

Pros:
– Extensive inventory with quick availability—over 50 million O-rings in stock
– Wide range of material, size, and customization options (including color,
– 98% on-time delivery record and rapid response—quotes typically same day, free
– Compliance with RoHS/Reach standards, ISO-9001-2015-based quality management,

Cons:
– Business-to-business sales only; not available to individual consumers
– $30 per line item minimum order requirement

Ace Seal | Custom Rubber O-Rings, Gaskets, & Seals

Product Details:
Ace Seal specializes in custom rubber O-rings, gaskets, and seals, offering a wide selection of standard and metric sizes and a variety of material options including Viton, Buna-N, Silicone, FFKM, Chemraz, Kalrez, EPDM, Neoprene, Fluorosilicone, Polyurethane, and others. Additional offerings include spliced/vulcanized O-rings, EMI shielded seals, O-ring cord, barrel bungs, and custom molded products.

Technical Parameters:
– O-Rings available in AS568, Boss 900 Series, Parker 800 Series, Parker 500
– Materials include Viton (fluorocarbon), Buna-Nitrile, Silicone, FFKM
– Supply of O-ring cord, spliced and vulcanized rings, and EMI shielded O-rings.
– Rubber sheet material and custom molding services are available.

Application Scenarios:
– Industrial fluid sealing and hydraulic systems.
– Aerospace, automotive, and electronics industries.
– Chemical processing and handling critical/harsh environments.
– OEM manufacturing and repair/maintenance situations where custom or

Pros:
– Wide selection of material compounds to suit diverse chemical, temperature, and
– Availability of both standard and custom sizes, including metric and specialty
– Custom molding and engineering/design support for unique sealing needs.
– Industry-standard and cross-referenceable product series for easy specification

Cons:
– Highly specialized products may require minimum order quantities or extended
– Wide selection may require technical expertise to specify the correct material
– Website does not list detailed technical data (e.g., temperature/chemical

O-Rings, Oil Seals, Piston Rings & More | Rocket Seals, Inc. | Rocket …

Product Details:
Rocket Seals supplies and distributes a wide range of sealing products including O-rings, hydraulic seals, pneumatic seals, rotary shaft seals, and custom molded rubber parts for various industries. They also provide custom sealing solutions and technical support.

Technical Parameters:
– O-rings and seals available in standard and custom sizes
– Materials include Nitrile, Viton, EPDM, Silicone, PTFE, and more
– Temperature resistance ranges from -70°F to +450°F depending on material
– Pressure ratings up to 10,000 psi for certain hydraulic seals

Application Scenarios:
– Hydraulic equipment and cylinders
– Pneumatic systems and machinery
– Automotive and aerospace components
– Agricultural and construction machinery

Pros:
– Wide selection of sealing products for various industries
– Expert technical support and application engineering assistance
– Custom solutions and fast turnaround on orders
– Access to high-performance materials and advanced sealing technologies

Cons:
– Limited direct pricing or e-commerce details on website
– Large selection may require technical consultation to specify the correct

O-Ring Manufacturers | O-Ring Suppliers

Product Details:
O-rings are versatile sealing solutions used to control pneumatic, hydraulic, and vacuum flows. Manufactured using injection or compression molding, they are available in a broad range of natural and synthetic elastomers, including Teflon (PTFE), Viton (fluorocarbon), silicone, neoprene, nitrile (Buna-N), EPDM, perfluoroelastomer (FFKM), and fluorosilicone, as well as specialty materials for unique requirements. Custom sizes, profiles, and material grades are available to suit demanding application needs, including FDA and aerospace compliance.

Technical Parameters:
– Manufactured via injection molding (for high volume and precision) or
– Material options include Teflon, Viton, silicone, neoprene, nitrile, EPDM, FFKM
– Design considerations: hardness (durometer), cross-section and overall size,
– Key performance factors: pressure resistance, chemical compatibility,

Application Scenarios:
– Medical devices, aerospace and aviation, automotive manufacturing, chemical
– Critical sealing in rotating pump shafts, hydraulic cylinder pistons, brake
– Aerospace and defense applications requiring extreme temperature/chemical
– Petrochemical applications needing resistance to aggressive fuels, solvents,

Pros:
– Excellent elasticity and recovery for reliable sealing.
– Wide chemical, temperature, and pressure resistance with long service life.
– Available in a variety of materials and customizable options for tailored
– Suitable for both static and dynamic sealing applications.

Cons:
– Improper material selection or inadequate quality control can cause
– Compression molding is less efficient and more labor-intensive for large
– Performance and reliability are highly dependent on precise material choice and

Custom & Standard Rubber O Rings Manufacturers & Suppliers In The USA | ARC

Product Details:
American Rubber Corp (ARC) manufactures and supplies both custom and standard rubber O-rings, along with a variety of other rubber sealing products including PTFE products, inflatable seals, oil seals, extruded rubber, rubber sheets & coated fabrics, die cut gaskets, rubber diaphragms, and custom rubber molded parts, serving customers in the USA.

Technical Parameters:
– Availability of custom and standard O-ring sizes
– Online O-ring size calculator for metric O-ring tolerances
– Range includes rubber and PTFE (Teflon) materials

Application Scenarios:
– Industrial sealing in machinery and equipment
– Oil and gas sector for sealing solutions
– General purpose sealing in automotive, fluid handling, and manufacturing

Pros:
– Provides both standard and customized O-ring solutions
– Wide product offering covers various sealing and rubber component needs
– Online tools to help with sizing and tolerances

Cons:
– Detailed material specifications and certifications are not clearly presented
– Limited technical and performance data for specific product grades (such as

Comparison Table

Company	Product Details	Pros	Cons	Website
The O-Ring Store LLC, We make getting O-Rings easy!	The O-Ring Store supplies a wide range of O-Rings, hydraulic seals, O-Ring kits	Wide selection of O-Ring materials and sizes available for immediate	Special materials or custom orders may have longer lead times May require	www.theoringstore.com
Home – OringsUSA	OringsUSA specializes in a broad selection of O-rings and sealing solutions,	Comprehensive selection of standard and custom sealing products Compliance with	Technical specifics about product performance and material properties not	www.oringsusa.com
O-Ring Supplier – Order High Performance & Custom O-Rings Fast	Marco Rubber offers an extensive range of o-rings in standard and custom sizes,	Large, in-stock selection with guaranteed same-day shipping for standard items	Custom o-rings may have higher upfront costs than standard solutions (though	www.marcorubber.com
O-Ring Manufacturer – Stock & Custom O-Ring Design	Captain O-Ring LLC	Captain O-Ring LLC manufactures and supplies standard and custom o-rings,	Competitive pricing comparable to overseas suppliers while maintaining American	Limited detailed technical parameters (like pressure/temperature ratings)
O-Rings	McMaster-Carr	McMaster-Carr offers O-rings that are used primarily for sealing applications	Wide variety of size options for diverse applications Both inch and metric	Limited technical specifications and material details provided directly on the
O-Rings West	O-Ring Supplier & Distributor of Standard & Custom O-Rings	O-Rings West supplies over 50 million standard and metric O-rings as well as	Extensive inventory with quick availability—over 50 million O-rings in	Business-to-business sales only; not available to individual consumers $30 per
Ace Seal	Custom Rubber O-Rings, Gaskets, & Seals	Ace Seal specializes in custom rubber O-rings, gaskets, and seals, offering a	Wide selection of material compounds to suit diverse chemical, temperature, and	Highly specialized products may require minimum order quantities or extended
O-Rings, Oil Seals, Piston Rings & More	Rocket Seals, Inc.	Rocket …	Rocket Seals supplies and distributes a wide range of sealing products	Wide selection of sealing products for various industries Expert technical
O-Ring Manufacturers	O-Ring Suppliers	O-rings are versatile sealing solutions used to control pneumatic, hydraulic,	Excellent elasticity and recovery for reliable sealing. Wide chemical,	Improper material selection or inadequate quality control can cause
Custom & Standard Rubber O Rings Manufacturers & Suppliers In The USA	ARC	American Rubber Corp (ARC) manufactures and supplies both custom and standard	Provides both standard and customized O-ring solutions Wide product offering	Detailed material specifications and certifications are not clearly presented

Frequently Asked Questions (FAQs)

How do I identify reliable o’ring supplier factories or manufacturers?

Look for suppliers with certifications such as ISO, a strong track record, positive customer reviews, and transparent business practices. Reliable suppliers are responsive, offer quality assurance on their products, and have experience exporting to your region.

What should I consider when comparing prices among o’ring manufacturers?

Evaluate the total cost, including shipping, minimum order quantities, bulk discounts, and payment terms. Cheaper isn’t always better; factor in product quality, testing standards, and after-sales support when making your decision.

How can I verify the quality of o’rings before placing a large order?

Request product samples and technical datasheets from the manufacturer. Reputable suppliers typically send samples for evaluation and may also provide test reports or certificates to demonstrate compliance with industry standards.

Do I need to check if the manufacturer can produce custom o’rings?

Yes, if your application requires specific sizes, materials, or colors, confirm that the manufacturer can customize o’rings to your specifications. Ask about their customization process, lead times, and any additional costs involved.

What services or support should I expect from a good o’ring supplier factory?

A good supplier offers technical assistance, prompt communication, flexible ordering options, and comprehensive documentation. They should also provide after-sales support and be willing to resolve any issues quickly and professionally.