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04MP-04FP STRAIGHT EXPANDER

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Description & Features

The 04MP-04FP Straight Expander by Brennan Industries Inc showcases robust construction with a maximum dynamic pressure rating of 6,000 Psi. Crafted from high-quality straight steel, it ensures durability and reliability for various industrial applications.

The product features threads conforming to SAE J476 specifications, enhancing compatibility and performance. The male NPTF B1 thread and female NPTF B2 thread both have a thread size of 1/4-18, measuring 0.281 mm in diameter, which allows for seamless connections.

Designed within series 5405, the overall length of this expander is 1.390 mm, making it compact yet efficient for demanding environments. The precise engineering provides optimal functionality with minimal maintenance.

Adhering to California's Prop-65 warning, users are informed of safety standards and compliance.

MPN: 5405-04-04

Supplier Part Number: 5405-04-04

Specifications

Brand
BRENNAN
Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
FNPT, MNPT
Connection Type 1
Male SAE 30 deg NPTF
Connection Type 2
Female SAE NPTF
Dimension Standards
SAE J476
Dimensions
1.39 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Expander
Hex Size
3/4 in
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
6000 psi
Series
5405 Series
Thread 2 Drill Dimensions
0.281 in
Thread B1 Drill Dimensions
0.281 in
Thread Size
1/4-18

Product Questions & Answers (2)

Question by: Darryl S on Jul 1, 2025, 2:11 PM
got a 1/4-18 male nptf on one side and need to land into a 1/4-18 female nptf port. is that what this expander is set up for?
Answer by: Customer Support on Jul 3, 2025, 1:52 PM
With male NPTF (B1) on one end and female NPTF (B2) on the other, both in 1/4-18, it’s set up to connect a 1/4-18 male NPTF thread into a 1/4-18 female NPTF thread using SAE J476 thread specs.
Question by: Rick R on Jan 21, 2026, 12:29 PM
Will this expander work alright with standard NPT fittings?
Answer by: Customer Support on Jan 22, 2026, 2:11 PM
This expander features both male and female NPTF threads, conforming to SAE J476 specifications, ensuring compatibility and secure connections with similar fittings.

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