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12MP-04FP REDUCER BUSHING BRASS

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Description & Features

The 12MP-04FP Reducer Bushing Brass facilitates efficient connection transitions in industrial and commercial applications. Crafted from high-quality straight brass it offers durability and reliable performance.

The overall length of the bushing measures 1.170mm. It features Male NPTF (3/4-14) threading on one end compliant with SAE J476 specifications ensuring secure compatibility. The opposite end includes Female NPTF (1/4-18) threading also adhering to SAE J476 standards.

The reducer bushing is part of the 5406 series by Brennan Industries Inc. and is designed with a thread B1 drill diameter of 0.719mm and a thread B2 drill diameter of 0.281mm. This dimension precision supports seamless integration into existing systems.

With a cubic inch space of 1.481 the compact design of this component is engineered for optimal functionality without compromising on performance. This product is a reliable choice for industry-specific connectors and adapters ensuring efficient and durable connections.

Supplier Part Number: 5406-12-04-B

Specifications

Brand
BRENNAN
Connection Size 1
3/4 in
Connection Size 2
1/4 in
Connection Type
FNPT, MNPT
Connection Type 1
Male SAE NPTF
Connection Type 2
Female SAE NPTF
Cubic Inch Space L x W x H Dimensions
1.481 cu-in
Dimension Standards
SAE J476, SAE J514
Dimensions
1.17 in L
Fitting Type
Bushing
Hex Size
1-1/8 in
Material
Brass
Material Construction
UNS C36000 Brass
Series
5406 Series
Thread 2 Drill Dimensions
0.281 in
Thread B1 Drill Dimensions
0.719 in
Thread Size
3/4-14, 1/4-18

Product Questions & Answers (2)

Question by: Dustin M on Apr 29, 2025, 4:23 PM
trying to step down from a 3/4 pipe thread to a 1/4 port, is this the right bushing?
Answer by: Customer Support on Apr 30, 2025, 5:27 PM
For a straight brass reducer bushing that adapts from a 3/4-14 Male NPTF on one side to a 1/4-18 Female NPTF on the other, this part matches that thread change and both ends are called out to SAE J476.
Question by: Larry H on Sep 26, 2025, 3:35 PM
Got a 3/4 male fitting on my manifold and need to step it down to a 1/4 female port. This bushing do that job?
Answer by: Customer Support on Sep 28, 2025, 6:39 AM
That's what this one's built for. The male end is 3/4-14 NPTF and the female end accepts 1/4-18 NPTF, so you're stepping down from a larger male connection to a smaller female port. Both threads conform to SAE J476, so you'll get a solid, leak-resistant fit on either end. Straight brass construction holds up well in most standard hydraulic and pneumatic line applications.

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