Stainless 316 Mbspp X Fnpt

Description & Features

Constructed from 316 stainless steel, this straight adapter provides a reliable threaded connection between a 3/8" male BSPP port and a 3/8" female NPT port. The Stainless 316 Mbspp X Fnpt is well suited for hydraulic and industrial fluid systems where corrosion resistance is a priority, particularly in environments exposed to moisture, chemicals, or aggressive media.

The male side carries a G 3/8-19 BSPP thread, while the female side accepts a 3/8-18 NPTF thread, making this fitting a practical solution for bridging British and North American thread standards within a single connection. At 33mm in length with a 24mm wrench width, the fitting is compact and straightforward to install. Manufactured by Adaptall, it is designed to integrate with their modular adapter system.

SKU: SS9035S-06-06

Supplier Part Number (MPN): SS9035S-06-06

Specifications

Connection Size 1
3/8 in
Connection Size 2
3/8 in
Connection Type
FNPT, Male BSP
Connection Type 1
Male BSPP
Connection Type 2
Female NPT
Dimension Standards
ANSI B1.20.3, BS 5200, ISO 1179, ISO 8434-6
Dimensions
33 mm L
Fitting Type
Adapter
Hex Size
24 mm
Material
Stainless Steel
Material Construction
316 Stainless Steel
Series
SS9035S Series
Thread Size
3/8-19 x 3/8-18

Product Questions & Answers (3)

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Question by: Ronnie H on Nov 26, 2025, 7:38 PM
Got a piece of equipment with a BSPP port on it and need to tie into a standard NPT line. This the right fitting to make that happen?
Answer by: Customer Support on Nov 28, 2025, 6:38 AM
For a 3/8" BSPP male port connecting to a 3/8" female NPT, yeah, this is exactly what you need. The one side runs a G 3/8-19 BSPP thread and the other accepts a 3/8-18 NPTF, so it bridges those two thread standards in one compact piece. It's made by Adaptall and fits into their modular adapter system, so installation is pretty straightforward.
Question by: Patty M on Jan 19, 2026, 6:19 AM
Will this fitting hold up okay if it's exposed to chemicals on a regular basis?
Answer by: Customer Support on Jan 21, 2026, 6:10 AM
Constructed from 316 stainless steel, this adapter offers good corrosion resistance, making it suitable for use with chemicals or in moist environments.
Question by: Steve H on Apr 23, 2025, 9:41 PM
got a machine with a G 3/8-19 port, will this adapter let me hook up to a 3/8 NPT line?
Answer by: Customer Support on Apr 25, 2025, 6:44 AM
For bridging thread standards, it gives you a G 3/8-19 BSPP male on one side and a 3/8-18 NPTF female on the other, so it connects a BSPP port to an NPT line end in a straight adapter.

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