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04MJ-06MORB STRAIGHT

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Description & Features

The 04MJ-06MORB STRAIGHT adapter from Brennan Industries Inc part of the 6400-O series is designed to meet rigorous industry standards. This adapter features a Male JIC SAE 37 Degree Flare on one end and a Male SAE O-Ring Boss on the other adhering to SAE J514 specifications.

Manufactured from straight steel this robust component ensures high durability and performance under a maximum dynamic pressure of 6 000 PSI. The NBR O-ring/seal material provides reliable sealing capability. The adapter measures an overall length of 1.290 mm and occupies a cubic inch space of 0.611 cubic inches.

Its thread dimensions include a B1 size of 7/16-20 with a drill diameter of 0.172 mm and a B2 size of 9/16-18 with a drill diameter of 0.297 mm. These precise specifications ensure compatibility with various industrial applications.

This product carries a PROP-65 warning for California residents.

Supplier Part Number: 6400-04-06-O

Specifications

Connection Size 1
1/4 in
Connection Size 2
3/8 in
Connection Type
Male JIC, Male SAE ORB
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Male SAE ORB
Cubic Inch Space L x W x H Dimensions
0.611 cu-in
Dimension Standards
SAE J1926, SAE J514
Dimensions
1.29 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
11/16 in
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
6000 psi
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
6400-O Series
Thread 2 Drill Dimensions
0.297 in
Thread B1 Drill Dimensions
0.172 in
Thread Size
9/16-18, 7/16-20

Product Questions & Answers (1)

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Question by: Glen P on Mar 21, 2026, 10:23 AM
what's the max pressure rating on this fitting? got a system running pretty hard and need to know it'll hold up
Answer by: Customer Support on Mar 22, 2026, 8:35 PM
Rated for 6,000 PSI dynamic pressure, so it's built to handle demanding hydraulic systems without issue. That's a solid working rating for most heavy-duty industrial and mobile equipment applications.

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