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04FFSS-04MORB STRAIGHT

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Description & Features

The 04FFSS-04MORB Straight hydraulic fitting is designed for seamless integration in industrial systems requiring robust and reliable connections. This fitting features a 9/16-18 thread on side A and a 7/16-20 thread on side B, ensuring compatibility with various hydraulic components. Its compact design, with a length of 1.460 inches and hex dimensions of 0.687 and 0.625 inches, provides a secure and efficient connection in tight spaces.

Constructed by Brennan Industries, the fitting is part of the FS6540-O series, renowned for its precision engineering and durability. The 1/4 inch tube outside diameter makes it suitable for a range of industrial applications. Whether you are working with complex machinery or straightforward industrial equipment, this fitting is built to meet rigorous standards and deliver reliable performance under demanding conditions.

SKU: FS6540-04-04-O

Supplier Part Number (MPN): FS6540-04-04-O

Specifications

Brand
BRENNAN
a Drill Dimensions
0.165 in
b Drill Dimensions
0.172 in
Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
Female ORFS Swivel, Male SAE ORB
Connection Type 1
Female SAE ORFS Swivel
Connection Type 2
Male SAE ORB
Dimension Standards
SAE J1453, SAE J1926
Dimensions
1.46 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
0.62 x 0.69 in
Material
Steel
Material Construction
AISI 12L14/C1045 Steel
Operating Temperature
-40 to 250 deg F
Series
FS6540-O Series
Thread Size
9/16-18, 7/16-20
Tube OD
1/4 in
Tube Outside Diameter
1/4 in

Product Questions & Answers (1)

Question by: Terry W on Dec 19, 2025, 7:35 PM
So, this is a straight fitting, right? Just wanna make sure it'll actually fit what I'm messin' with. What size threads are on each end?
Answer by: Customer Support on Dec 21, 2025, 6:51 AM
Context-first. One side's got a 9/16-18 thread, and the other end's a 7/16-20 thread. That should help you figure out if it'll work for your setup.

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