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Female Bspp X Female Npt

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Description & Features

Designed for straight-through thread conversion, this steel adapter connects a G 1/4-19 female BSPP port to a 1/4-18 NPTF female NPT port in a compact, inline configuration. Both sides are 1/4" in size, making it well-suited for applications where BSPP-threaded components must interface with NPT-threaded fittings or manifolds in hydraulic and fluid power systems.

The Female BSPP X Female NPT adapter is manufactured from steel and measures 28.6mm in length with a 19mm across-flat width, keeping the connection footprint tight in space-constrained assemblies. The straight shape allows for direct port-to-port connection without angular offset.

SKU: 9044-04-04

Supplier Part Number (MPN): 9044-04-04

Specifications

Brand
adapt-all
Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
Female BSP, FNPT
Connection Type 1
Female BSPP
Connection Type 2
Female NPT
Dimension Standards
ANSI B1.20.3, BS 5200, ISO 1179, ISO 8434-6
Dimensions
28 mm L
Finish
Zinc-Plated
Fitting Type
Adapter
Hex Size
19 mm
Material
Steel
Material Construction
Carbon Steel
Series
9044 Series
Thread Size
1/4-19 x 1/4-18

Product Questions & Answers (3)

Question by: Scott W on Jan 24, 2026, 6:26 PM
Will this here adapter fit right if I'm tryin' to hook up a BSPP fitting to somethin' with NPT threads? Both sides are supposed to be 1/4 inch.
Answer by: Customer Support on Jan 26, 2026, 7:24 AM
It's designed for exactly that – connecting a 1/4" BSPP female port to a 1/4" NPT female port.
Question by: Daryl M on Jun 20, 2025, 3:57 PM
both sides are female on this thing? just want to make sure before i order, got a male BSPP stud on my manifold and a male NPT fitting coming off the line
Answer by: Customer Support on Jun 22, 2025, 6:55 AM
Both sides are female, so you'd need male threads on whatever you're connecting to on each end. One side accepts a G 1/4-19 male BSPP thread and the other takes a 1/4-18 male NPT thread. If your manifold has a male BSPP stud and your line fitting is male NPT, this adapter would sit right between them and make that conversion straight through.
Question by: Pete F on Aug 21, 2025, 9:47 AM
got a manifold port that’s G 1/4-19 BSPP female and my hose end is 1/4-18 NPTF female. is this the piece that lets em hook together?
Answer by: Customer Support on Aug 23, 2025, 6:53 AM
Built for straight-through thread conversion, it gives you a G 1/4-19 BSPP female port on one side and a 1/4-18 NPTF female port on the other, both in 1/4 inch size. That makes it a simple way to join BSPP-threaded components to NPT-threaded fittings or manifolds in the same line.

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