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Male Npt X Fixed Female Bspp

Description & Features

This Adaptall straight fitting is a male NPT to fixed female BSPP adapter, designed for connecting components with dissimilar thread types. Constructed from durable steel, this fitting ensures a secure and reliable connection in hydraulic systems.

The 9037-04-06 Male NPT X Fixed Female BSPP features a 1/4" male NPT end with a 1/4 - 18 NPTF callout, and a 3/8" fixed female BSPP end with a G 3/8 - 19 callout. The wrench flat is 22mm and the Adaptall L Length is 35.4mm.

SKU: 9037-04-06

Supplier Part Number (MPN): 9037-04-06

Specifications

CH Width 22mm	L Length 35.4mm	Adaptall Material Steel	Adaptall Shape Straight	Side 1 Callout 1/4 - 18 NPTF	Side 1 Gender M	Side 1 Size 1/4"	Side 1 Type Npt	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 9037-04-06	Product Weight 0.10 lbs

Product Questions & Answers (2)

Question by: Howard P on Jul 26, 2025, 7:43 AM

got a hose end that’s 1/4-18 nptf and the port on the block is g 3/8-19, is this the right adapter to marry those up?

Answer by: Customer Support on Jul 28, 2025, 7:10 AM

For connecting those two thread types, this fitting matches up as 1/4 inch male NPT with a 1/4-18 NPTF callout on one end, and a 3/8 fixed female BSPP with a G 3/8-19 callout on the other.

Question by: Cindy P on Jan 24, 2026, 7:55 AM

Got a machine running 1/4" NPT fittings on one end and 3/8 BSPP on the other, this the right adapter to tie them together?

Answer by: Customer Support on Jan 25, 2026, 8:23 PM

That's exactly what this fitting handles. One end is a 1/4" male NPT, threaded to the 1/4-18 NPTF standard, and the other is a 3/8" fixed female BSPP with a G 3/8-19 thread. If your ports match those specs, this adapter bridges the two without any modification needed.