Skip to the beginning of the images gallery

#2 MP X #4 FP

Description & Features

The 02MP-04FP Straight Expander by Brennan Industries Inc is engineered for high-performance applications. With a maximum dynamic pressure of 6,000 Psi, this straight steel expander ensures reliable functionality in demanding environments.

Designed for seamless integration, the male NPTF has a thread size of 1/8-27, and the female NPTF has a thread size of 1/4-18. Both thread types adhere to the SAE J476 specification, providing consistency and durability.

The overall length of 1.210 mm allows for versatile usage in various industrial applications. This product is constructed using high-quality straight steel, ensuring longevity and resistance to wear.

PROP-65 WARNING: California Residents

Supplier Part Number: 5405-02-04

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 5405-02-04	Product Weight 0.09 lbs

Product Questions & Answers (2)

Question by: Gene R on Nov 16, 2025, 7:32 AM

Is this alright to use with other SAE J476 fittings?

Answer by: Customer Support on Nov 17, 2025, 1:46 PM

This expander is designed with both male and female NPTF threads adhering to the SAE J476 specification, ensuring compatibility with other fittings meeting the same standard.

Question by: Merle H on Feb 22, 2026, 9:25 PM

i’ve got a 1/8-27 male NPTF on one side and need to step up to 1/4-18 female NPTF. is that what this expander does

Answer by: Customer Support on Feb 24, 2026, 11:18 AM

It steps a connection from a 1/8-27 male NPTF thread (B1) to a 1/4-18 female NPTF thread (B2), with both ends called out to the SAE J476 thread specification.