Compressors and accessories
APEX Female 3/8 Swivel to Male 1/4 NPT Adapter
An APEX adapter from the female APEX Quick Connect 3/8 swivel to a male 1/4 NPT thread. The manufacturer lists it for use with the Precision Tire Inflator and the Quick Connect "Y" splitter. It lets APEX hardware tie into any 1/4 NPT system - a compressor quick coupler, for example.
APEX Female 3/8 Swivel to Male 1/4 NPT Adapter
The whole APEX system runs on one standard: the 3/8 swivel. The rest of the pneumatic world runs on 1/4 NPT.
This adapter is the bridge between the two - it lets APEX hardware tie into whatever you already have in the workshop.
PORT 1 Female 3/8 swivel | PORT 2 Male 1/4 NPT thread | WORKS WITH Precision Tire Inflator, Quick Connect "Y" |
Key benefits
- adapts the APEX Quick Connect Male Swivel to 1/4 NPT
- the manufacturer lists it for the Precision Tire Inflator and the Quick Connect "Y" splitter
- lets APEX hardware tie into any 1/4 NPT system - a compressor quick coupler, for example
What is in the box
- APEX female 3/8 swivel to male 1/4 NPT adapter - 1 pc

Technical data
- Manufacturer part number: X02-11-005
- Port 1: female 3/8 swivel
- Port 2: male 1/4 NPT thread
- Application: Precision Tire Inflator, Quick Connect "Y", any 1/4 NPT hardware
Who it is for
For anyone building an air system where APEX hardware has to work with 1/4 NPT equipment - a workshop compressor, a quick coupler or a gauge from outside the APEX range.
Frequently asked questions
Will it fit a compressor with a 1/4 NPT coupler?
The adapter has a male 1/4 NPT thread, so it screws into female 1/4 NPT hardware. Check what port your compressor uses before buying.
Is this the same as the cover-nut version?
No. The cover-nut version is a separate APEX part number. This one is the female 3/8 swivel to male 1/4 NPT adapter, part X02-11-005.
Is a seal included?
The manufacturer does not list package contents beyond the adapter itself, so we make no claim about it.
Why it is worth it
- one small part that opens APEX hardware up to standard workshop fittings
- a genuine APEX Designs and Performance Products part
Not sure this is the right adapter for your setup? Get in touch and we will help.