We are always looking at ways we can better serve our valued customers. We’ve gathered helpful information and partnered with some of our top vendors to bring you reference material that is clear, concise, and easy to find. If you have additional questions, please reach out to one of our locations, will be happy to assist you.

Identify Fluid Ports & Connectors - Danfoss - Full PDF

American Connections

NPTF—Tapered Pipe ThreadSAE—JIC HydraulicSAE—O-Ring Face Seal
NPSM—Straight Pipe ThreadSAE—45 degreeSAE—Inverted Flare
SAE—O-Ring Boss Straight ThreadSAE—Flareless Tubes(Ermeto)SAE—4 Bolt Flange (CAT)

ISO Connections

ISO/DIS 4-Bolt FlangeISO 4-Bolt Flange ISO - Metric Port

German Connections

German - DINGerman - 4 Bolt FlangeGerman - DIN Metric

French ConnectionsBritish Connections Japanese Connections

French - Metric Threads

British Standard Pipe Thread Japanese Connections

Oil Pan ID

Plug Threads Pilot Threads


Thread ID Guide

Couplamatic Cross References

Crimp SpecsGates Vari-crimp
Aeroquip ParkerWeatherhead
Dayco Synflex Quick Coupler Interchange