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Extended Mbspp-Fbspp Bushing

Description & Features

Designed for reducing or adapting between two BSPP thread sizes, this steel straight bushing connects a male G 1/4 - 19 thread on one end to a female G 3/8 - 19 thread on the other. The extended body profile, measuring 34.8mm in length with a 22mm across-flats width, provides additional engagement depth compared to standard hex bushings, which is useful where thread reach or fitment clearance is a factor.

The Extended Mbspp-Fbspp Bushing is manufactured by Adaptall in steel construction, making it suited for use in hydraulic circuits and industrial fluid systems where a reliable, compact size transition between 1/4" and 3/8" BSPP connections is required. The straight configuration keeps the flow path direct with no angular offset.

SKU: 9039-04-06

Supplier Part Number (MPN): 9039-04-06

Specifications

CH Width 22mm	L Length 34.8mm	Adaptall Material Steel	Adaptall Shape Straight	Side 1 Callout G 1/4 - 19	Side 1 Gender M	Side 1 Size 1/4"	Side 1 Type Bspp	Side 2 Callout G 3/8 - 19	Side 2 Gender F	Side 2 Size 3/8"	Side 2 Type Bspp	Brand Adaptall America	Brand Adaptall	Pack Size 1.00	UOM EA	Supplier Part Number 9039-04-06	Product Weight 0.99 lbs

Product Questions & Answers (1)

Question by: Howard A on Apr 10, 2025, 9:45 PM

Got a 3/8 BSPP port on a manifold block and need to run a 1/4 BSPP line off it, will this bushing handle that transition straight through?

Answer by: Customer Support on Apr 12, 2025, 7:35 PM

That's exactly what it's built for. The female end is G 3/8 - 19 BSPP and the male end is G 1/4 - 19 BSPP, so it steps down from the larger port to the smaller line in a single piece. Steel construction holds up fine in hydraulic circuits and industrial fluid systems, and the straight body keeps the flow path direct with no angle change. At 34.8mm long with a 22mm across-flats, it gives you more thread engagement than a standard short hex bushing, which can matter when clearance around the port is tight.