Normalized tube record

0.400 in OD tube

A measured tube group centered on 0.400-inch outside diameter. It is separated from nominal drill-size classes until a verified equivalence is recorded.

0.400 in OD

Observed outside diameters0.400" (10.2 mm) · 0.400" (10.2 mm)

Known kit lengths6

Linked kits / projects7

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

Atracis RB/FPBerea Hardwoods · No SKU recordedLower / bodybarrel position0.400" (10.2 mm)tube OD2.088" (53.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Atrax BPBerea Hardwoods · No SKU recordedLower / bodybarrel position0.400" (10.2 mm)tube OD2.330" (59.2 mm)tube lengthNot recordedminimum blank cutOpen kit →Atrax RB/FPBerea Hardwoods · No SKU recordedLower / bodybarrel position0.400" (10.2 mm)tube OD2.190" (55.6 mm)tube lengthNot recordedminimum blank cutOpen kit →Cyclone Fountain / RollerballBeaufort Ink · No SKU recordedLower / bodybarrel position0.400" (10.2 mm)tube OD2.394" (60.8 mm)tube lengthNot recordedminimum blank cutOpen kit →Electra RB/FPBerea Hardwoods · No SKU recordedLower / bodybarrel position0.400" (10.2 mm)tube OD2.810" (71.4 mm)tube lengthNot recordedminimum blank cutOpen kit →Triton BPBerea Hardwoods · No SKU recordedLower / bodybarrel position0.400" (10.2 mm)tube OD2.330" (59.2 mm)tube lengthNot recordedminimum blank cutOpen kit →Triton RB/FPBerea Hardwoods · No SKU recordedLower / bodybarrel position0.400" (10.2 mm)tube OD1.850" (47.0 mm)tube lengthNot recordedminimum blank cutOpen kit →