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#40 MJ X #40 MP ST.

Description & Features

This straight steel fitting features a #40 MJ X #40 MP connection. It conforms to SAE J514 standards for the B1 thread, which is a 3-12 Male JIC SAE 37 Degree Flare. The B2 thread conforms to SAE J476 and is a 2-1/2-8 Male NPTF type.

SKU: 2404-40-40

Supplier Part Number (MPN): 2404-40-40

Alternate Part Numbers: A2021-40-40S

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 2404-40-40	Product Weight 2.41 lbs

Product Questions & Answers (1)

Question by: Lee H on Mar 5, 2026, 10:01 AM

What size are those threads? Want to make sure it'll fit my setup.

Answer by: Customer Support on Mar 7, 2026, 6:59 AM

This fitting features a #40 MJ x #40 MP connection. The B1 thread is a 3-12 Male JIC SAE 37 Degree Flare, while the B2 thread is a 2-1/2-8 Male NPTF type.