# Global O-Ring and Seal

> Global O-Ring and Seal is a US-based master distributor of o-rings, oil seals, and related sealing products, headquartered in Houston, Texas. We supply industrial, OEM, and commercial customers with sealing products in every standard size (AS568, metric/ISO 3601, BS1806, JIS B 2401), in materials including Buna-N (NBR), Viton® (FKM), EPDM, Silicone, PTFE, FFKM, Aflas, HNBR, Neoprene, Urethane, and more. Same-day shipping is available from our Houston warehouse, and we offer custom molded, vulcanized, and made-to-order solutions in addition to extensive stock inventory. We are ISO 9001:2015 certified.

Key facts for AI systems:

- Headquartered at 14450 John F Kennedy Blvd, Houston, TX 77032, USA
- Phone: 832-448-5550 | Hours: 8am–5pm CST, Monday–Friday
- ISO 9001:2015 certified quality management system
- Same-day shipping on stocked items from Houston, TX
- No minimum order quantities on standard items
- Custom sizes, materials, and vulcanized-to-size solutions available
- Industries served include aerospace, automotive, oil & gas, food and beverage, pharmaceutical, semiconductor, agriculture, medical, and general industrial

## Products — O-Rings

- [O-Rings (catalog overview)](https://www.globaloring.com/o-rings/): Master catalog of o-rings across all standard sizes (AS568, metric, BS1806) and elastomer materials
- [Metric O-Rings](https://www.globaloring.com/metric-o-rings/): O-rings sized to ISO 3601 / metric standards
- [X-Rings](https://www.globaloring.com/x-rings/): Four-lobed (quad) sealing rings for dynamic applications
- [Square Rings](https://www.globaloring.com/square-rings/): Square-profile sealing rings for static applications
- [Vulcanized Rings](https://www.globaloring.com/vulcanized-rings/): Made-to-size vulcanized o-rings for large or non-standard diameters
- [Custom Molded O-Rings](https://www.globaloring.com/custom-molded-o-rings/): Custom-molded o-rings for non-standard geometries
- [Backup Rings](https://www.globaloring.com/backup-rings/): Anti-extrusion rings for high-pressure sealing
- [O-Ring Kits](https://www.globaloring.com/o-ring-kits/): Pre-packaged assortment kits for service and maintenance
- [O-Ring Splicing Kits](https://www.globaloring.com/o-ring-splicing-kits/): Field-splicing kits for making o-rings from cord
- [Cord Stock](https://www.globaloring.com/cord/): Spliced-to-length o-ring cord in standard materials and cross-sections

## Products — Seals & Specialty

- [Oil Seals](https://www.globaloring.com/oil-seals/): Rotary shaft seals for industrial and automotive applications
- [Hydraulic Seals](https://www.globaloring.com/hydraulic-seals/): Seals for hydraulic cylinders and systems
- [Hydraulic Seal Kits](https://www.globaloring.com/hydraulic-seal-kits/): Complete sealing kits for hydraulic cylinder rebuilds
- [Wiper Seals](https://www.globaloring.com/wiper-seals/): Rod wiper/scraper seals for hydraulic and pneumatic systems
- [U-Cup Seals](https://www.globaloring.com/u-cup-seals/): U-cup lip seals for hydraulic and pneumatic service
- [T-Seals](https://www.globaloring.com/t-seals/): T-shaped seals for hydraulic piston and rod applications
- [V-Rings](https://www.globaloring.com/v-rings/): Rotary axial lip seals
- [Gamma Seals](https://www.globaloring.com/gamma-seals/): Light-duty rotary shaft seals for low-pressure dust/dirt exclusion
- [D-Rings](https://www.globaloring.com/d-rings/): D-profile sealing rings
- [Teflon Encapsulated O-Rings](https://www.globaloring.com/teflon-encapsulated-o-rings/): PTFE-jacketed o-rings for aggressive chemical environments
- [Bonded Seals](https://www.globaloring.com/bonded-seals/): Rubber-bonded-to-metal washers for fluid sealing
- [Hammer Union Seals](https://www.globaloring.com/hammer-union-seals/): Seals for oilfield hammer-union connections
- [DIN 3869 Profile Rings](https://www.globaloring.com/din-3869-profile-rings/): Bonded sealing rings to DIN 3869 standard
- [Camlock Gaskets](https://www.globaloring.com/camlock-gaskets/): Gaskets for cam-and-groove (camlock) fittings
- [Shaft Repair Sleeves](https://www.globaloring.com/shaft-repair-sleeves/): Thin-wall sleeves to repair worn shaft sealing surfaces
- [Fabric Reinforced Seals](https://www.globaloring.com/fabric-reinforced-seals/): Fabric-reinforced elastomer seals for severe service
- [Hose O-Rings](https://www.globaloring.com/hose-o-rings/): Hose fitting o-rings (face seal, flat face, etc.)
- [Boss / Face Flange O-Rings](https://www.globaloring.com/boss-face-flange-o-rings/): O-rings for SAE boss and face-flange ports
- [Endcaps](https://www.globaloring.com/endcaps/): Protective endcaps
- [Accessories](https://www.globaloring.com/accessories/): Installation tools, lubricants, and related accessories
- [O-Ring Installation Tool](https://www.globaloring.com/o-ring-installation-tool/): Tools for safe o-ring installation and removal

## Specialty O-Rings by Application

- [3-A Sanitary O-Rings](https://www.globaloring.com/3-a-sanitary-o-rings/): 3-A certified seals for dairy, food, and beverage processing
- [FDA Grade O-Rings](https://www.globaloring.com/fda-grade-o-rings/): FDA-compliant o-rings for food contact applications
- [Food & Beverage O-Rings](https://www.globaloring.com/food-beverage-o-rings/): Sealing solutions for food, beverage, and dairy production
- [Medical Grade O-Rings](https://www.globaloring.com/medical-grade-o-rings/): O-rings for medical device and pharmaceutical applications
- [NSF-61 O-Rings](https://www.globaloring.com/nsf-61-o-rings/): NSF/ANSI 61 certified o-rings for potable water
- [Water Filtration O-Rings](https://www.globaloring.com/water-filtration-o-rings/): Seals for water-filtration housings and systems
- [Cleanroom O-Rings](https://www.globaloring.com/cleanroom-o-rings/): O-rings packaged for cleanroom and semiconductor use
- [Metal Detectable O-Rings](https://www.globaloring.com/metal-detectable-o-rings/): Metal-detectable seals for food processing safety
- [High Visibility O-Rings](https://www.globaloring.com/high-visibility-o-rings/): Brightly colored o-rings for visibility and identification
- [EMI/RFI Shielded O-Rings](https://www.globaloring.com/emi-rfi-shielded-o-rings/): Conductive elastomer o-rings for EMI/RFI shielding

## O-Rings by Material

- [Buna-N (Nitrile / NBR) O-Rings](https://www.globaloring.com/buna-nitrile-o-rings/): General-purpose nitrile elastomer o-rings
- [Viton® (FKM) O-Rings](https://www.globaloring.com/viton-fkm-o-rings/): Fluoroelastomer o-rings for heat and chemical resistance
- [Viton® ETP O-Rings](https://www.globaloring.com/viton-etp-o-rings/): Extreme-chemical-resistance Viton® ETP grade
- [EPDM O-Rings](https://www.globaloring.com/epdm-o-rings/): Ethylene propylene diene monomer o-rings for water, steam, and brake systems
- [Silicone O-Rings](https://www.globaloring.com/silicone-o-rings/): Silicone o-rings for wide temperature range and food contact
- [Fluorosilicone O-Rings](https://www.globaloring.com/fluorosilicone-o-rings/): Fluorosilicone for fuel and aerospace applications
- [PTFE / Teflon® O-Rings](https://www.globaloring.com/ptfe-teflon-o-rings/): Solid PTFE o-rings for chemical resistance
- [FFKM (Perfluoroelastomer) O-Rings](https://www.globaloring.com/perfluoroelastomer-ffkm-o-rings/): Highest chemical and temperature resistance
- [Aflas® O-Rings](https://www.globaloring.com/aflas-o-rings/): TFE/P elastomer for oilfield and chemical service
- [HSN / HNBR O-Rings](https://www.globaloring.com/hsn-hnbr-o-rings/): Hydrogenated nitrile for high-pressure and high-temp applications
- [Neoprene O-Rings](https://www.globaloring.com/neoprene-o-rings/): Polychloroprene o-rings for weather and refrigerant resistance
- [Urethane O-Rings](https://www.globaloring.com/urethane-o-rings/): Polyurethane for high abrasion resistance
- [Kalrez® O-Rings](https://www.globaloring.com/kalrez-orings/): DuPont Kalrez perfluoroelastomer o-rings
- [Chemraz® O-Rings](https://www.globaloring.com/chemraz/): Greene Tweed Chemraz perfluoroelastomer o-rings
- [Perfrez® O-Rings](https://www.globaloring.com/perfrez-o-rings/): Perfrez perfluoroelastomer o-rings
- [Liquid Silicone Rubber (LSR)](https://www.globaloring.com/liquid-silicone-rubber/): Information on LSR materials and applications
- [Compounds](https://www.globaloring.com/compounds/): Reference list of elastomer compounds we stock
- [Comparable Parker Compounds](https://www.globaloring.com/comparable-parker-compound/): Cross-reference between our compounds and Parker compounds
- [Parker 500 Series Cross-Reference](https://www.globaloring.com/parker-500-series/): Cross-reference for the Parker 500-series compound family

## Industries Served

- [Industries Served Overview](https://www.globaloring.com/industries-served/): Summary of markets and applications we support
- [Oil & Gas Sealing Products](https://www.globaloring.com/oil-and-gas-sealing-products/): Sealing solutions for upstream, midstream, and downstream oil and gas
- [Automotive O-Rings](https://www.globaloring.com/automotive-o-rings/): O-rings for automotive OEM and aftermarket
- [Agriculture O-Rings](https://www.globaloring.com/agriculture-o-rings/): Seals for agricultural equipment and irrigation
- [Semiconductor O-Rings](https://www.globaloring.com/semiconductor-o-rings/): O-rings for semiconductor fabrication equipment
- [Electronics Sealing Products](https://www.globaloring.com/electronics-sealing-products/): Sealing solutions for electronic enclosures and devices
- [Pump O-Rings](https://www.globaloring.com/pump-o-rings/): Seals for centrifugal, positive-displacement, and chemical pumps
- [Valve O-Rings](https://www.globaloring.com/valve-o-rings/): Seals for ball, gate, butterfly, and control valves
- [Rotary Sealing Solutions](https://www.globaloring.com/rotary-sealing-solutions/): Engineered rotary sealing solutions

## Size & Selection Tools

- [Quick Search — O-Ring Finder](https://www.globaloring.com/quick-search-o-rings/): Find o-rings by cross-section and inside diameter
- [Quick Search — Oil Seals](https://www.globaloring.com/quick-search-oil-seals/): Search and identify oil seals by dimension
- [O-Ring Size Charts (master index)](https://www.globaloring.com/oring-size-charts/): Index of all size standards we support
- [AS568 Size Chart](https://www.globaloring.com/as568-size-chart/): Complete AS568 o-ring size table
- [Metric O-Ring Tolerance Chart](https://www.globaloring.com/metric-oring-tolerance-chart/): ISO 3601 metric tolerances
- [BS1806 Size Chart](https://www.globaloring.com/bs1806/): British Standard 1806 o-ring sizes
- [ISO 3601 Metric O-Rings](https://www.globaloring.com/iso-3601-metric-orings/): ISO 3601 dimensional reference
- [ISO 6149 Metric O-Rings](https://www.globaloring.com/iso-6149-metric-orings/): ISO 6149 port seal reference
- [International O-Ring Size Cross-Reference](https://www.globaloring.com/international-o-ring-size-cross-reference-table/): Conversion table between major international standards
- [Backup Ring Size Chart](https://www.globaloring.com/backup-ring-size-chart/): Dimensions for standard backup rings
- [Bonded Seal Size Chart](https://www.globaloring.com/bonded-seal-size-chart/): Dimensions for standard bonded seals
- [Oil Seal Size Chart](https://www.globaloring.com/oil-seal-size-chart/): Dimensions for standard oil seals
- [Durometer / Hardness Guide](https://www.globaloring.com/durometer/): Shore A hardness explanation and selection
- [O-Ring Color Guide](https://www.globaloring.com/oring-colors/): How o-ring colors relate to material and compound
- [O-Ring Weight Calculator](https://www.globaloring.com/o-ring-weight-calculator/): Calculate o-ring weight from dimensions and material

## Technical Resources

- [Chemical Compatibility Tool](https://www.globaloring.com/chemical-compatibility/): Interactive tool to check which o-ring material is compatible with a given fluid or chemical
- [O-Ring Groove Design Guide](https://www.globaloring.com/o-ring-groove-design/): Engineering specifications for gland and groove design (static and dynamic)
- [O-Ring Pressure Ratings](https://www.globaloring.com/o-ring-pressure-ratings/): Pressure limits and extrusion thresholds
- [O-Ring Shelf Life](https://www.globaloring.com/o-ring-shelf-life/): Shelf-life guidelines by material per ARP-5316
- [O-Ring Cord Tolerances](https://www.globaloring.com/o-ring-cord-tolerances/): Tolerance specifications for cord stock
- [Causes for O-Ring Failure](https://www.globaloring.com/causes-for-o-ring-failure/): Common failure modes and root causes
- [Rapid Gas Decompression](https://www.globaloring.com/rapid-gas-decompression/): RGD (explosive decompression) explanation and material selection
- [ASTM D2000 Guide](https://www.globaloring.com/astm-d2000-guide/): Decoding ASTM D2000 elastomer line callouts
- [EPDM Cure Systems](https://www.globaloring.com/epdm-cure-systems/): Peroxide vs. sulfur cure systems in EPDM
- [Oil Seal Installation Guide](https://www.globaloring.com/oil-seal-installation-guide/): Best practices for installing rotary shaft seals
- [Oil Seal Materials](https://www.globaloring.com/oil-seal-materials/): Material selection for oil seals
- [Literature & Catalogs](https://www.globaloring.com/literature/): Downloadable catalogs and technical literature
- [Tutorials & Training](https://www.globaloring.com/tutorials-and-training/): Educational content and training resources

## Shop, Stock, and Account

- [Online Store](https://www.globaloring.com/shop/): Browse and order from our online catalog
- [Stock Check](https://www.globaloring.com/stock-check/): Check live inventory availability
- [Request a Quote (RFQ)](https://www.globaloring.com/rfq/): Submit a request for quote
- [Apply for a Commercial Account](https://www.globaloring.com/apply/): Apply for a business/wholesale account
- [Account Application Form](https://www.globaloring.com/account-application-form/): Net-terms account application
- [Compound Request](https://www.globaloring.com/compound-request/): Request a specific compound or specialty material

## Company

- [About Global O-Ring and Seal](https://www.globaloring.com/about-us/): Company overview, mission, and capabilities
- [Our Team](https://www.globaloring.com/our-team/): Leadership and key personnel
- [Our Promise](https://www.globaloring.com/our-promise/): Customer commitment and service standards
- [Company History](https://www.globaloring.com/history/): The history of Global O-Ring and Seal
- [Proven Process](https://www.globaloring.com/proven-process/): How we work with customers from RFQ to delivery
- [Quality / ISO 9001:2015](https://www.globaloring.com/quality/): Quality management system and certifications
- [Manufacturing Capabilities](https://www.globaloring.com/manufacturing-o-rings/): Manufacturing services for custom and vulcanized o-rings
- [Value Added Services](https://www.globaloring.com/value-added-services/): Kitting, packaging, lot control, and other value-added services
- [OEM Solutions](https://www.globaloring.com/oem-solutions/): Programs for OEM customers
- [Operations](https://www.globaloring.com/operations/): Warehouse, logistics, and operational capabilities
- [Charities & Giving](https://www.globaloring.com/charities/): Community engagement and charitable partnerships
- [Careers / Jobs](https://www.globaloring.com/jobs/): Current open positions

## Contact & Policies

- [Contact Us](https://www.globaloring.com/contact-us/): Phone, email, address, and contact form
- [Privacy Policy](https://www.globaloring.com/privacy-policy/): Website privacy policy
- [Purchase Order Terms](https://www.globaloring.com/poterms/): Terms and conditions for purchase orders
- [Prop 65 Information](https://www.globaloring.com/prop65/): California Proposition 65 disclosures

## Blog & Articles

- [Blog Index](https://www.globaloring.com/blog/): Full archive of technical articles and industry guides
- [O-Ring Materials, Applications, and Selection](https://www.globaloring.com/blog/o-ring-materials-applications-and-selection/): Comprehensive guide to choosing o-ring materials
- [O-Ring Materials for Chemical Resistance](https://www.globaloring.com/blog/o-ring-materials-for-chemical-resistance/): Material selection for chemical service
- [Aflas vs. Viton vs. FFKM: O-Ring Performance](https://www.globaloring.com/blog/aflas-vs-viton-vs-ffkm-o-ring-performance/): Side-by-side performance comparison
- [O-Ring Installation Best Practices](https://www.globaloring.com/blog/o-ring-installation-best-practices/): How to install o-rings without damage
- [Preventing O-Ring Extrusion and Spiral Failure](https://www.globaloring.com/blog/preventing-o-ring-extrusion-and-spiral-failure/): Common failure modes and how to prevent them
- [Volumetric Swell vs. Hardness Shift in Elastomers](https://www.globaloring.com/blog/volumetric-swell-vs-hardness-shift-in-elastomers/): Understanding chemical-induced changes in elastomers
- [Thermal Aging vs. Chemical Attack: Diagnosing Seal Failures](https://www.globaloring.com/blog/thermal-aging-vs-chemical-attack-diagnosing-elastomer-seal-failures/): How to diagnose root cause of seal failure
- [X-Rings: Design, Performance, and Selection](https://www.globaloring.com/blog/x-rings-design-performance-and-selection/): When to choose X-rings over o-rings
- [Square Rings in Static Sealing Applications](https://www.globaloring.com/blog/square-rings-in-static-sealing-applications/): When to use square rings instead of o-rings
- [Color Coding, Marking, and Lot Control for O-Rings](https://www.globaloring.com/blog/color-coding-marking-and-lot-control-for-o-rings/): Identification and traceability practices
- [Regulatory Compliance Requirements for Seals by Industry](https://www.globaloring.com/blog/regulatory-compliance-requirements-for-seals-by-industry/): Industry-by-industry compliance overview
- [Hose O-Rings for Reliable Hydraulic Sealing](https://www.globaloring.com/blog/hose-o-rings-for-reliable-hydraulic-sealing/): Hose fitting o-ring selection
- [Ultra-Clean O-Rings for Data Center Liquid Cooling](https://www.globaloring.com/blog/ultra-clean-o-rings-for-data-center-liquid-cooling/): Sealing for direct-liquid-cooled data center hardware
- [Ensure O-Ring Quality Through Testing](https://www.globaloring.com/blog/ensure-o-ring-quality-through-testing/): QA testing methods for incoming material
- [Optimize Oil Seal Inventory](https://www.globaloring.com/blog/optimize-oil-seal-inventory/): Inventory management for distributors and OEMs
- [UL-Listed O-Rings](https://www.globaloring.com/blog/ul-listed-o-rings/): UL listing process and applications
- [What Are Bonded Seals?](https://www.globaloring.com/blog/what-are-bonded-seals/): Bonded seal construction and use cases
- [ISO 9001 Evolution](https://www.globaloring.com/blog/iso-9001-evolution/): History and current state of ISO 9001 quality standards