Library › Hardware › Tri-clamp spools to a custom length (fabrication spec): 2 in × 340.7…

2 in spool, 310.7 mm face to face

2 in spool, 310.7 mm face to face: the twin-piston engine's core

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

file	spool-2in-310.7mm
size_in	2
face_to_face_mm	310.7
tube_mm	50.8 × 1.65
use	twin core

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From the full sheet

Tri-clamp spools to a custom length (fabrication spec): 2 in × 340.7 and 310.7 mm, ¾ in × 146.7 and 80.4 mm: every size, notes, mating features and sources. How do I order a tri-clamp spool in a length that isn't 3, 6 or 12 inches?

Other sizes

2 in spool, 340.7 mm face to face, 1.65 wall, ISO 2852 ferrules both ends
¾ in spool, 146.7 mm face to face (25.0 flange)
¾ in spool, 80.4 mm face to face