BSP Reducing Bushing (Male × Female) — Parametric (3D Print)

Parametric BSP reducing bushing — hex head, male outer thread + smaller female inner thread — by MarineLab3D.
Adapt a larger female port to a smaller male fitting. For 3D printing in PETG or PA12.

🔧 Male thread (outer): BSP 1/8" to 2 1/2" — central hex sized to its DIN
🔩 Female thread (inner): any smaller BSP size (cannot be equal/larger than the male)
⬡ Hex head for wrenching · BSPP parallel, seal with O-ring / PTFE

🖨️ Print recommendations: PETG or PA12, 0.15–0.2 mm layers, 3 perimeters. Thread axis vertical.

Use “Customize dimensions” to set the male and female sizes (female auto-limited to smaller than male), preview in 3D, then receive your STL after purchase.