Swagelok® Fittings
Swagelok® Fittings
Replaced Faster With Spec-Matched North American Stock
Compression hardware holds your process lines together under real load. Pressure spikes, vibration, and thermal cycling all work to loosen a bad connection. When a fitting lets go at 5,000 PSI, the result is not just a maintenance call. It is a safety event, an unplanned shutdown, and a production loss that adds up fast. When you need to replace Swagelok® fittings fast, Superlok North America has spec-matched Superlok replacements machined to the same OD tolerances, thread specs, and ferrule geometry as the originals.
Precision matters at the connection point. A compression assembly that is even 0.005″ off in OD tolerance will not produce a proper ferrule bite. It will leak. Our tube unions, male connectors, and adapter bodies are held to the same dimensional standards as Swagelok® parts. They are proven safe alongside your current Swagelok® hardware, so you can replace one piece at a time without redesigning the system.
Front and Back Ferrule Geometry Produces a Verified Bite at 1.25 Turns
- Front ferrule cold-works into tube OD for a permanent gas-tight metal-to-metal seal
- Back ferrule spring action loads the front ferrule and locks the tube against axial pull-out
- 1.25-turn pull-up produces consistent bite across OD sizes from 1/16" through 1"
- Inch and metric OD configurations available for new builds and existing system repairs
- Compatible with 316 SS, 304 SS, copper, and carbon steel instrumentation tubing
ASME B1.20.1 Thread Tolerances Guarantee Clean Port Seating Every Time
Use our legacy brand cross-reference tool to match your existing Swagelok® part number to our catalog in seconds. It covers Parker, Hy-Lok, Ham-Let, and DK-Lok part numbers as well.
- NPT bodies machined to ASME B1.20.1 taper for thread-seal without compound or tape
- Tube-end fitting bodies match Swagelok® male connector thread specs for direct port swap
- Face-to-face body lengths identical to Swagelok® for panel manifold replacement
- Available in male connectors, female connectors, unions, elbows, tees, and reducer adapters
- Port thread sizes verified against Swagelok® dimensional standards before production approval
ASTM A276 316 SS Bar Stock and Heat Codes Eliminate Hidden Alloy Failures
- Ferrules and bodies cut from ASTM A276 316 SS billet for confirmed alloy composition
- Heat code stamped on every body for traceability from production batch to installed part
- 316 SS resists pitting, crevice corrosion, and chloride attack in offshore and chemical service
- Hastelloy C-276 and Monel 400 available for acid service and high-chloride applications
- Matching alloy throughout body, nut, and ferrule set eliminates mixed-metal galvanic paths
Third-Party Hydrostatic and Pull-Out Testing Backs Every Compression Assembly
Independent testing is the standard for critical instrumentation hardware. Our industry certifications come from third-party labs, not internal sign-off. Every product family goes through hydrostatic burst testing at 1.5x working pressure, axial pull-out testing against tube tensile strength, and vibration endurance testing before production approval. ISO 9001 controls the manufacturing process on every run.
- ISO 9001 certified manufacturing with documented in-process controls on every production run
- Hydrostatic burst tested to 1.5x working pressure by independent third-party labs
- NACE MR0175 compliant for hydrogen sulfide and sour gas service environments
- Axial pull-out tested to exceed tube tensile strength at rated working pressure
- Complete test documentation and material certs available for plant safety review
North American Warehouse Stock Ships Replacement Hardware the Same Day
- Same-day shipping on in-stock configurations from our North American warehouse
- Full inventory of standard tube unions, male connectors, elbows, tees, and reducers
- Swagelok® part number cross-reference built directly into our online shop
- Technical team available to verify your part match and confirm specs before you order
- No minimum order quantity on standard compression hardware configurations
Ready to Save 40% on Your Next Order?
Send us your current Swagelok® part numbers and get an instant
quote. Most orders ship same day from our California warehouse.
Swagelok® Compatible Status Is Determined by Measurable Specifications
Matches critical tolerances for thread engagement and ferrule sealing
Maintains pressure and burst integrity under field conditions
Aligns with metallurgical and corrosion-resistance standards
Is supported with documentation, testing, and technical data
Trusted by Industry Leaders
See why thousands of engineers at Fortune 500 companies have made the switch to SuperlokUSA for their critical fluid system applications.
We’ve been using SuperlokUSA alternatives for 3 years now. Same quality as Swagelok® but at 40% less cost. The delivery time is incredible – we get parts in days, not weeks.
What Engineers Ask Before Switching
Get answers to the most common questions about making the switch to Superlok USA.
Are these actually interchangeable with Swagelok® parts?
Yes. Our components are engineered to match Swagelok® dimensional specifications, pressure ratings, and material standards. They install directly into existing systems with no modifications required. We manufacture to the same ASTM and ASME standards, ensuring thread compatibility, seal integrity, and pressure performance.
Will using alternatives void my OEM equipment warranties?
No. Fluid system components are not typically covered under equipment warranties, and using industry-standard interchangeable parts does not void OEM coverage. Our parts meet or exceed the same material and performance specifications. If you have specific warranty concerns, we can provide certification documentation for your records.
What if a part doesn't fit or match specifications?
We guarantee fit and function. If a cross-referenced part doesn’t match your system specifications, we’ll replace it at no charge or provide a full refund. Our technical team verifies compatibility before shipment, and we maintain detailed cross-reference documentation for every part number.
Who else is using SuperlokUSA as Swagelok® alternatives?
Our components are used daily in midstream oil & gas facilities, chemical processing plants, pharmaceutical manufacturing, power generation, and semiconductor fabrication. We serve Fortune 500 companies and regional operators alike. Over 500+ facilities nationwide rely on our parts for critical fluid systems.
Why are your prices lower if the quality is the same?
We don’t charge brand premiums. Our pricing reflects manufacturing cost plus a reasonable margin – not decades of brand positioning. We also maintain direct relationships with mills and distributors, eliminating middleman markups. Same certifications, same performance, transparent pricing.
Do you provide engineering support before I order?
Absolutely. Our technical team can verify cross-compatibility, recommend alternatives for discontinued parts, and provide material certifications before shipment. We’re not just a parts supplier – we’re a technical resource. Call us at (805) 658-2044 or submit your part numbers for verification.
Have more questions? Our engineering team is here to help.
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