Hose Fitting Conversion Adapter Guide

When working with equipment manufactured in different parts of the world, one of the most important factors to take into consideration is the system measurement in the place of origin. With items equipped for hydraulics or pneumatics, hose and fitting connectors can come in a variety of thread configurations such as metric or British type threads.

Fittings that come standard from those original equipment manufacturers are not always readily available in the configurations needed to make repairs. This can cause several problems such as costly downtime, severe leaks, or safety issues. Leaks, and in turn safety issues, can be caused by installing components with mismatched threads. Sometimes referred to as cross-threading, this can cause irreversible damage to both ends of a connection.

Conversion adapters are an excellent way to achieve a proper connection without needing to request replacements from the OEM. Offered in a variety of types, thread configurations, and combinations, the following guide will give a brief overview into the most common adapters.

Adapter Types

Straight Conversion Adapters

90 Degree Conversion Adapters

Common Adapter Conversions

  • British to SAE
  • Metric to SAE
  • Japanese to JIC
  • British to JIC
  • British to O-Ring Flat Face
  • Metric to NPTF
  • British to NPTF

Latest Cross Company Resources

Cross Precision Measurement transformed a Tennessee energy facility’s metrology program by deploying a custom mobile calibration lab. Delivering ISO 17025-accredited calibrations directly on-site, Cross eliminated downtime, improved accuracy, and ensured complete audit readiness.
October 5, 2026
Cross Logo
System integrators must test control system configurations. Ideally we thoroughly test them before systems are delivered. Simulating inputs based on outputs is a key tool to perform these tests.
July 28, 2026
Author – Chris Hardy
Cross Logo
A global leader in food ingredients provides micro-ingredient feeders to flour and corn mills to facilitate the addition of enrichments, bleaching products, and other additives. To address increasing customer requirements for precision and data logging, the manufacturer partnered with Cross to modernize these systems by retrofitting established hardware with advanced
June 30, 2026
Cross Logo
production line using servo drive automation
Maximize efficiency and precision in your automation processes. Learn how to optimize your motion control systems with Applied Motion Products from Cross Company.
June 16, 2026
Cross Logo
Stop patching and start planning. Learn how a phased 6-step roadmap for legacy control system modernization reduces risk, spreads costs, and avoids downtime.
April 9, 2026
Cross Logo
katronic logo
Learn how Cross Process Solutions utilized the KATflow 150 to solve water billing inaccuracies and identify steam leaks for a major manufacturer. Discover the advantages of non-invasive ultrasonic technology for continuous industrial processes where system downtime is not an option.
February 9, 2026
Cross Logo

See how our team can help improve efficiency, reduce risk, and raise quality in your process.

Contact our Team

"*" indicates required fields

This field is for validation purposes and should be left unchanged.
What can we help you with today?*

Where Can We Send Your Information?

Name*
Company Location*
Form Type

Hang Tight! We're Searching... Searching... Searching...

We’re looking through thousands of pages to find the most relevant information.

In the meantime, enjoy these fun facts…

Did you know… Cross Company is an ESOP (Employee Stock Ownership Plan). Our ESOP started in 1979 and as of 2006, we are 100% employee-owned! Learn more about our ESOP and how that benefits both team members and our customers.
Did you know... the precision measurement group at Cross was founded in 1939 by our current CEO's grandfather, Jim King. That's a whole lot of calibration!
Did you know... A fingerprint weighs about 50 micrograms. We know, we weighed it! The residue left from a finger can actually make a difference in weight results which is why we wear gloves when we calibrate weights. For reference, a sheet of paper is about 4.5 grams, that’s 4.5 million micrograms.
Did you know… Cross Company has grown significantly since our start in 1954. Over the years we've acquired 26 companies! Today, our five groups have expertise in everything from industrial automation to precision measurement, and industry knowledge going all the way back to 1939.