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04MFS-04MORB STRAIGHT LONG

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Description & Features

A straight long configuration adaptor designed for hydraulic line connections, the 04MFS-04MORB Straight Long from Brennan Industries provides a reliable male face seal to male O-ring boss interface in a 04 to 04 size pairing. The long body design accommodates installations where additional thread engagement length or clearance is required, making it a practical choice for tight routing arrangements in hydraulic assemblies.

Manufactured by Brennan Industries, this fitting is suited for use in hydraulic systems operating with standard SAE face seal and O-ring boss port connections. The male face seal (MFS) end mates with a 37-degree flare port, while the male O-ring boss (MORB) end seals at the port face, supporting leak-free performance in demanding industrial environments.

SKU: FF6400-L-04-04

Supplier Part Number (MPN): FS6400-L-04-04-O

Alternate Part Numbers: AFF1854T0404S

Specifications

Connection Size 1
1/4 in
Connection Size 2
1/4 in
Connection Type
Male ORFS, Male SAE ORB
Connection Type 1
Male SAE ORFS
Connection Type 2
Male SAE ORB
Dimension Standards
SAE J1453, SAE J1926
Dimensions
2.07 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
5/8 in
Material
Steel
Material Construction
AISI 12L14/C1045 Steel
Maximum Operating Pressure
9200 psi
Operating Temperature
-40 to 250 deg F
Series
FS6400-L-O Series
Thread Size
9/16-18, 7/16-20

Product Questions & Answers (1)

Question by: Daryl A on Mar 18, 2026, 5:06 PM
Reckon this'll hook up okay with my existing SAE face seal and O-ring boss setups?
Answer by: Customer Support on Mar 20, 2026, 8:40 AM
This straight long adaptor is indeed designed to mate a male face seal (MFS) end with a 37-degree flare port and a male O-ring boss (MORB) end to seal at the port face. It's made to work directly with those standard SAE connections.

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