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BRENNAN INDUSTRIES ADAPTER 3/8 FEMALE PIPE SWIVEL X 1/4 FEMA

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Description & Features

The Brennan Industries Adapter 3/8 Female Pipe Swivel x 1/4 Female is designed for use in high-pressure environments. Made from straight steel it has a maximum dynamic pressure of 6 000 psi ensuring durability and reliability. This adapter features a 3/8-18 female NPSM swivel that conforms to SAE J514 and a 1/4-18 female NPTF thread in line with SAE J476 standards. The overall length measures 1.480 mm with L2 being 1.270 mm providing a compact and efficient design for various industrial applications. The hex size is 0.875 mm allowing for easy installation and maintenance. The product is identified by the supplier part number 1405-04-06.

Supplier Part Number: 1405-04-06

California Residents: PROP-65 WARNING

Specifications

Brand
BRENNAN
Connection Size 1
1/4 in
Connection Size 2
3/8 in
Connection Type
FNPT, NPSM Swivel
Connection Type 1
Female SAE NPTF
Connection Type 2
Female SAE NPSM Swivel
Cubic Inch Space L x W x H Dimensions
0.701 cu-in
Dimension Standards
SAE J476, SAE J514
Dimensions
1.48 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
11/16 x 7/8 in
l2 Dimensions
1.27 in
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
6000 psi
Series
1405 Series
Thread 2 Drill Dimensions
0.32 in
Thread B1 Drill Dimensions
0.281 in
Thread Size
3/8-18 x 1/4-18

Product Questions & Answers (1)

Question by: Ronnie M on Feb 4, 2026, 7:06 PM
what's the max pressure rating on this adapter? got a line running pretty hot and need to know if it'll hold up
Answer by: Customer Support on Feb 6, 2026, 5:13 PM
Rated for 6,000 psi dynamic pressure, so it handles high-pressure hydraulic lines without issue. That's the working pressure spec for this adapter built from straight steel, and it holds up consistently in demanding industrial setups.

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