Swagelok SS-400-R-12M stainless steel tube fitting reducer (1/4 in. tube OD x 12 mm tube adapter). This straight reducer fitting connects tubing of different sizes in a linear path—ideal for maintaining flow efficiency in compact, critical systems.

Specifications

Specification	Value
Body Material	316 Stainless Steel
Bored Through	No
Cleaning Process	Standard Cleaning and Packaging (SC-10)
Connection 1 Size	1/4 in.
Connection 1 Type	Swagelok® Tube Fitting
Connection 2 Size	12 mm
Connection 2 Type	Swagelok® Tube Adapter
Flow Restrictor	No
eClass (4.1)	37070710
eClass (5.1.4)	37020590
eClass (6.0)	37020590
eClass (6.1)	37020590
eClass (10.1)	37020590
UNSPSC (4.03)	40142603
UNSPSC (10.0)	40142615
UNSPSC (11.0501)	40142615
UNSPSC (13.0601)	40183112
UNSPSC (15.1)	40183112
UNSPSC (17.1001)	40183112

Product Selection and Intermixing

Do not mix/interchange Swagelok products or components not governed by industrial design standards, including Swagelok tube fitting end connections, with those of other manufacturers.

The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user.