3269X20X12 | #20 ORB M to #12 NPT F Hydraulic Adapter
3269X12X12 | #12 NPT F to #12 ORB M Hydraulic Adapter
3269X20X20 | #20 ORB F to #20 NPT M Hydraulic Adapter
3269X20X20 | #20 NPT F to #20 ORB M
3239X04X04 | #4 NPT F to #4 ORB M Hydraulic Adapter
9315X16X12 | #16 NPT F Swi to #12 ORB M
3269X20X24 | #20 NPT F to #24 ORB M
3269X12X12 | #12 NPT M to #12 ORB F Hydraulic Adapter
3269X12X16 | #12 NPT F to #16 ORB M Hydraulic Adapter
F3459X06X08 | #6 NPT F to #8 ORB M 90
3269X12X10 | #12 NPT F to #10 ORB M Hydraulic Adapter
4314X08X12 | #8 NPT M to #12 ORB M Hydraulic Adapter
3269X16X16 | #16 NPT F to #16 ORB M Hydraulic Adapter
3269X12X12 | #12 NPT F to #10 ORB M Hydraulic Adapter
3269X10X12 | #10 NPT F to #12 ORB M Hydraulic Adapter
F3459X08X12 | #8 NPT F to #12 ORB M
9315X12X12 | #12 NPT F to #12 ORB M Swivel
9315X12X16 | #12 NPT F Swivel to #16 ORB M
F3459X12X08 | #12 NPT F to #8 ORB M 90
F3459X12X08 | #12 NPT F to #16 ORB M 90
Hydraulic Hose Fittings
845-155-S
Hydraulic Tank Fittings
Hydraulic Fittings
American Made certified

American Made

Over a Decade of Manufacturing Experience certified

Decade Experience

O-Ring Boss NPT Adapters Catalog

O-Ring Boss (ORB) to NPT adapters provide reliable hydraulic connections between O-Ring Boss and National Pipe Thread systems. These precision-engineered fittings ensure leak-free transitions in hydraulic applications across industrial machinery, mobile equipment, and construction systems. Available in multiple thread sizes (#4 through #24) and configurations including straight adapters, 90-degree elbows, and swivel designs, our American-made adapters deliver durability and performance for demanding hydraulic environments.

Our Range of Products
3269X20X12 | #20 ORB M to #12 NPT F Hydraulic Adapter

3269X20X12 | #20 ORB M to #12 NPT F Hydraulic Adapter

  • #20 ORB M to #12 NPT F adapter
  • Compact space-saving design
  • 16 units ready to ship
3269X12X12 | #12 NPT F to #12 ORB M Hydraulic Adapter

3269X12X12 | #12 NPT F to #12 ORB M Hydraulic Adapter

  • #12 NPT F to #12 ORB M adapter
  • 675 units in stock
  • Affordable $3.00 pricing
3269X20X20 | #20 ORB F to #20 NPT M Hydraulic Adapter

3269X20X20 | #20 ORB F to #20 NPT M Hydraulic Adapter

  • #20 ORB F to #20 NPT M fitting
  • 21 units in stock
  • AHS Hydraulics quality
3269X20X20 | #20 NPT F to #20 ORB M

3269X20X20 | #20 NPT F to #20 ORB M

  • #20 NPT F to #20 ORB M adapter
  • 60 units available immediately
  • Interest-free payment plans
3239X04X04 | #4 NPT F to #4 ORB M Hydraulic Adapter

3239X04X04 | #4 NPT F to #4 ORB M Hydraulic Adapter

  • #4 NPT F to #4 ORB M connection
  • 52 units in stock
  • Competitively priced at $4.00
9315X16X12 | #16 NPT F Swi to #12 ORB M

9315X16X12 | #16 NPT F Swi to #12 ORB M

  • #16 NPT F Swivel to #12 ORB M
  • Swivel for easy installation
  • 30 units available

Showing 1 to 6 of 24 results

Frequently Asked Questions

What is the difference between O-ring Boss and NPT?

O-Ring Boss (ORB) uses a straight thread with an O-ring for sealing, providing leak-free connections. NPT uses tapered threads that seal by interference. ORB adapters allow connection between these two systems.

What thread is the O-ring Boss?

Can I reuse O-Ring Boss adapters?

What torque specifications should I use for ORB to NPT adapters?

Are these adapters compatible with high-pressure hydraulic systems?

What's the difference between straight and 90-degree adapters?

Do you offer swivel adapters for easier installation?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Construction Equipment

Construction Equipment

Heavy-duty adapters for excavators, bulldozers, and loaders requiring reliable hydraulic connections.

Industrial Manufacturing

Industrial Manufacturing

Precision adapters for hydraulic presses, conveyors, and automated manufacturing equipment.

Agricultural Equipment

Agricultural Equipment

Durable adapters for tractors, harvesters, and farm machinery hydraulic systems.

Mobile Hydraulics

Mobile Hydraulics

Adapters for firewood processors, log splitters, and portable hydraulic equipment.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

You might also like

Hydraulic Hose Fittings | NPT and O-Ring Boss Adapters & Fittings

NPT and O-Ring Boss Adapters & Fittings

NPT and O-Ring Boss adapters and fittings provide reliable connections in high-pressure hydraulic systems. These American-made steel components include straight adapters, 90-degree elbows, and male-to-male configurations in thread sizes from #4 to #20. Engineered for construction equipment, industrial machinery, and firewood processing applications, these fittings ensure leak-free performance with ORB o-ring seals and NPT tapered threads.
F5515X06X04 | #6 JIC M to #4 ORB M 90 | SAE O-Ring Boss to JIC Hydraulic Adapters

SAE O-Ring Boss to JIC Hydraulic Adapters

SAE O-Ring Boss to JIC Hydraulic Adapters provide reliable connections between ORB and JIC threaded hydraulic systems. Available in straight and 90-degree configurations from #4 to #24 thread sizes, these American-made adapters ensure leak-free performance in high-pressure applications. Engineered for industrial machinery, construction equipment, and mobile hydraulics with precision manufacturing standards.
845-155-S | 1-1/2" NPT Adapters

1-1/2" NPT Adapters

Explore our range of 1-1/2" NPT adapters engineered for reliable hydraulic system connections. These American-made hydraulic fittings feature NPT to ORB configurations in straight and 90-degree designs, ensuring leak-free performance in demanding industrial applications. Manufactured in-house with rigorous quality control for heavy machinery, construction equipment, and hydraulic maintenance operations.

Why Industrial Operations Choose AHS Hydraulics

American Manufacturing Excellence

All components designed, fabricated, and tested in the USA with raw materials sourced from North America. Over a decade of proven hydraulic engineering expertise ensures superior quality control and reliability.

Direct Manufacturer Advantage

Purchase directly from the source and eliminate middlemen. Our in-house fabrication and streamlined processes deliver the correct, high-quality parts at unbeatable prices with industry-leading support.

Technical Expertise & Support

Our team of experienced engineers, welders, and operators are fellow heavy machinery users. Receive direct technical guidance from the designers who created your hydraulic components.

Get Expert Guidance on Your O-Ring Boss NPT Adapter Needs

Our hydraulic specialists will help you select the right adapter configuration for your system. Request a quote and receive technical support from experienced engineers within 24 hours.

Contact Us Today

For immediate assistance, feel free to give us a direct call at 607-307-4029 You can also send us a quick email at info@ahshydraulics.com