Swagelok M-400-6 is an Alloy 400/R-405 tube fitting union designed for 1/4 in. outside diameter tubing. Manufactured from high-quality Alloy 400/R-405 and processed with standard cleaning and packaging (SC-10), this fitting delivers exceptional reliability and leak-tight performance in demanding industrial fluid systems.

This union features a robust tube grip and powerful vibration resistance to achieve a secure seal. The outstanding reliability of Swagelok tube fittings has been proven through more than 65 years of successful field application and is heavily documented in published test reports, including comprehensive evaluations conducted under extreme conditions.

Product Specifications

Specification	Value
Body Material	Alloy 400/R-405
Straight-Through Bore	No
Cleaning Process	Standard Cleaning and Packaging (SC-10)
Connection 1 Size	1/4 in.
Connection 1 Type	Swagelok® Tube Fitting
Connection 2 Size	1/4 in.
Connection 2 Type	Swagelok® Tube Fitting
Flow Restrictor	No

Industry Classifications

Classification	Code
eClass (4.1)	37070701
eClass (5.1.4 / 6.0 / 6.1 / 10.1)	37020590
UNSPSC (4.03)	40142603
UNSPSC (10.0 / 11.0501)	40142600
UNSPSC (13.0601 / 15.1)	40183100
UNSPSC (17.1001)	40183103

Intermixing Warning

Do not mix or interchange Swagelok products or components not governed by industrial design standards (including Swagelok tube fitting end connections) with products or components from other manufacturers.