AN Male to Imperial Male Restricted Adapters - Stainless Steel

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£16.56

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Restricted AN4 to 7/16"-24 Connections

These stainless steel adapters provide a transition between an AN4 convex male connection and a 7/16"-24 concave male connection while incorporating a fixed internal flow restriction.

Integrated Flow Restriction

Choose from 0.7mm, 1.0mm or 1.2mm internal restriction sizes. The correct restriction should be selected according to the requirements of the component and fluid system rather than the connection size alone.

Convex and Concave Connections

One end uses an AN4 7/16"-20 UNF convex male connection. The opposite end uses a 7/16"-24 concave male connection.

The two connections have different thread pitches and different mating requirements, so the 7/16"-24 connection must not be treated as an AN4 connection simply because both have a nominal 7/16" thread diameter.

303/304 Stainless Steel

The adapters are precision CNC machined in the UK from 303/304 stainless steel with a natural stainless steel finish.

Type: AN Male to Imperial Male Restricted Adapter For adapting between convex and concave connections with an integrated flow restriction
Material: 303/304 Stainless Steel Excellent strength and durability
Finish: Natural Stainless Steel Corrosion-resistant
Manufactured In: United Kingdom Precision CNC machined

Connection 1: AN Male Convex seat
Connection 2: Imperial Male Concave seat

Restriction Type: Fixed Internal Restriction Limits fluid flow through the adapter
Available Restrictions: 0.7mm / 1.0mm / 1.2mm Select according to the requirements of the component and application

Available stainless steel AN male to imperial male restricted adapters
Product Code	Connection 1	Connection 2	Restriction
ADP-MM-AN-IMP-RES-SS-AN4CVX-716X24CCV-07	AN4 Male 7/16"-20 UNF · Convex seat	7/16"-24 Male Concave seat	0.7mm
ADP-MM-AN-IMP-RES-SS-AN4CVX-716X24CCV-10	AN4 Male 7/16"-20 UNF · Convex seat	7/16"-24 Male Concave seat	1.0mm
ADP-MM-AN-IMP-RES-SS-AN4CVX-716X24CCV-12	AN4 Male 7/16"-20 UNF · Convex seat	7/16"-24 Male Concave seat	1.2mm

Select the restriction to suit the application. The required restriction depends on the component and fluid system. Always follow the component manufacturer's requirements where specified.

Turbo Oil Feeds
Oil Systems
Custom Fluid Systems

Free repair or replacement for two years from the date of purchase. Learn more

Frequently Asked Questions

What is a restricted adapter used for?
A restricted adapter incorporates a smaller internal passage to limit fluid flow through the connection. The required restriction size depends on the component and application.
What restriction sizes are available?
Choose from 0.7mm, 1.0mm or 1.2mm internal restrictions.
Which restriction size should I choose?
Use the restriction specified for the component and application. A smaller restriction limits flow more than a larger restriction, but the correct size should be determined by the requirements of the system rather than the connection size alone.
What connections do these adapters have?
One end has an AN4 7/16"-20 UNF convex male connection and the other has a 7/16"-24 concave male connection.
Is the 7/16"-24 connection AN4?
No. AN4 uses a 7/16"-20 UNF thread. The 7/16"-24 connection has a different thread pitch and the two should not be confused or interchanged.
How do the connections seal?
The convex and concave connections seal against their corresponding mating seats.
Do I need thread sealant?
No. These connections seal against their mating seats rather than on the threads, so thread sealant should not be required.
Can these be used as turbo oil restrictors?
They can be used in a compatible fluid system where an in-line restriction of the specified size is required. For turbocharger oil feeds, always use the restriction specified by the turbocharger manufacturer for the particular turbo, oil pressure and installation.
What are the adapters made from?
They are precision CNC machined from 303/304 stainless steel for excellent strength and durability.
Where are these adapters manufactured?
They are precision CNC machined in the United Kingdom.