Normalized tube record

0.374 in OD tube

A measured tube group centered on 0.374-inch outside diameter. It is separated from nominal drill-size classes until a verified equivalence is recorded.

0.374 in OD

Observed outside diameters0.374" (9.5 mm)

Known kit lengths3

Linked kits / projects5

Replacement listings0

Before substituting

Match OD, wall thickness, and length.

The class name helps discovery; it does not override the kit maker's current tube specification. A close drill size does not prove that two brass tubes are interchangeable.

Kit cross-reference

Known barrel lengths

Graces click pen kitsXiamen Rizheng · RZ-BPCL353Upper / capbarrel position0.374" (9.5 mm)tube OD2.441" (62.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Horse ball pen kitsXiamen Rizheng · RZ-BP478Upper / capbarrel position0.374" (9.5 mm)tube OD1.665" (42.3 mm)tube lengthNot recordedminimum blank cutOpen kit →Horse pencl kitsXiamen Rizheng · RZ-PCL478Upper / capbarrel position0.374" (9.5 mm)tube OD1.665" (42.3 mm)tube lengthNot recordedminimum blank cutOpen kit →Mysterious sky series FP pen kitsXiamen Rizheng · RZ-FP272Lower / bodybarrel position0.374" (9.5 mm)tube OD2.835" (72.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Mysterious sky series RB pen kitsXiamen Rizheng · RZ-RP272Lower / bodybarrel position0.374" (9.5 mm)tube OD2.835" (72.0 mm)tube lengthNot recordedminimum blank cutOpen kit →