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#4 MP X #6 FP (SWIVEL) 90*

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Description & Features

The #4 MP X #6 FP (SWIVEL) 90* elbow forged by Brennan Industries Inc is designed to meet high-performance standards. Crafted from forged steel it ensures durability and reliability in demanding industrial applications. This component features a male NPTF thread type with a specification of SAE J476 on one end and a female NPSM swivel thread type with a specification of SAE J514 on the other making it versatile for various connections.

The elbow has a C hex 1 measurement of 0.875 mm with centerline lengths of 1.200 mm and 0.990 mm respectively. The total cubic inch space is 2.284 offering a compact yet efficient design.

With a maximum dynamic pressure capacity of 6 000 PSI it is built to withstand high-pressure environments. The overall length of the fitting is 1.220 mm ensuring a precise fit in compact spaces. Thread B1 measures at 1/4-18 while Thread B2 is sized at 3/8-18 providing compatibility with a range of fittings.

Supplier Part Number: 1501-04-06-FG

Please note the PROP-65 warning for California residents.

Specifications

Brand
BRENNAN
a Dimensions
1-1/2 in
b Dimensions
0.94 in
Connection Size 1
1/4 in
Connection Size 2
3/8 in
Connection Type
FNPSM Swivel, MNPT
Connection Type 1
Male SAE 30 deg NPTF
Connection Type 2
SAE FNPSM Swivel
Cubic Inch Space L x W x H Dimensions
2.284 cu-in
Dimension Standards
SAE J476, SAE J514
Dimensions
1.22 in L
Finish
Trivalent Zinc-Plated
Fitting Type
90 deg Elbow
Hex Size
7/8 in
l Dimensions
1.22 in
Material
Steel
Material Construction
AISI C1045 Steel
Maximum Operating Pressure
6000 psi
Series
1501-FG 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 (2)

Question by: Gene P on Feb 18, 2026, 1:46 PM
fitting's rated to 6,000 PSI, that hold up steady under continuous hydraulic pressure or is that more of a peak number?
Answer by: Customer Support on Feb 20, 2026, 6:31 AM
6,000 PSI is the maximum dynamic pressure rating for this fitting, meaning it reflects operating conditions rather than just a momentary spike tolerance. Forged steel construction gives it solid wall integrity under sustained load, so it handles continuous high-pressure hydraulic systems without the concerns you'd have with cast alternatives. Just make sure your line and mating fittings are rated to match.
Question by: Sheila B on Feb 6, 2026, 10:16 AM
got a hose end that’s 3/8-18 swivel, will this elbow mate up to it and what’s on the other side
Answer by: Customer Support on Feb 8, 2026, 8:28 AM
On the swivel side it has a female NPSM swivel thread in 3/8-18 (SAE J514). The other end is a male NPTF in 1/4-18 (SAE J476).

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