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Stainless Mbspp X Fnpt

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Description & Features

This Adaptall fitting is a Stainless Mbspp X Fnpt adapter with a straight shape, designed to connect different thread types and sizes in hydraulic systems. It features a 3/8" male BSPP (G 3/8 - 19) connection on one side and a 1/4" female NPT (1/4 - 18 NPTF) connection on the other.

Constructed from stainless steel, this adapter offers durability and corrosion resistance. The fitting has a 24mm wrench flat width and an overall length of 34.8mm.

SKU: SS9035-06-04

Supplier Part Number (MPN): SS9035-06-04

Specifications

Brand
adapt-all
Connection Size 1
3/8 in
Connection Size 2
1/4 in
Connection Type
FNPT, Male BSP
Connection Type 1
Male BSPP 60 deg Flare
Connection Type 2
Female NPT
Dimension Standards
ANSI B1.20.3, BS 5200
Fitting Type
Adapter
Hex Size
24 mm
Material
Stainless Steel
Material Construction
316 Stainless Steel
Series
SS9035 Series
Thread Size
1/4-19 x 3/8-19

Product Questions & Answers (2)

Question by: Ricky W on Jan 28, 2026, 4:13 PM
Got a line running 3/8 BSPP on the equipment side and the rest of my system is NPT, this adapter gonna bridge that gap?
Answer by: Customer Support on Jan 30, 2026, 7:19 AM
That's exactly the situation this fitting handles. One end is 3/8 male BSPP (G 3/8 - 19) and the other is 1/4 female NPT (1/4 - 18 NPTF), so it threads right between those two standards without any additional adapters in between. Just keep in mind the size steps down from 3/8 to 1/4, so make sure your flow requirements work with that reduction before you install it.
Question by: Sherry G on Nov 22, 2025, 4:46 PM
Will this fitting hold up okay outside? I'm hooking up a small hydraulic cylinder to split wood, and it's gonna be exposed to the weather.
Answer by: Customer Support on Nov 23, 2025, 5:56 PM
This adapter is made from stainless steel, which offers good durability and corrosion resistance, so it should hold up well in outdoor conditions.

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