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12MORB-08FORB STRAIGHT REDUCER

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Description & Features

Designed for reducing thread size in straight-run hydraulic connections, this fitting steps down from a 12 Male O-Ring Boss to an 8 Female O-Ring Boss configuration. The 12MORB-08FORB Straight Reducer is manufactured by Brennan Industries and suits hydraulic systems where port size reduction is needed without changes in line direction. O-ring boss connections provide reliable leak-resistant sealing, making this fitting well-suited for medium- to high-pressure hydraulic circuits in industrial and mobile equipment applications.

The straight body profile keeps installations compact where space is a consideration, and the ORB thread form on both ends ensures compatibility with standard SAE O-ring boss ports.

SKU: 6410-12-08

Supplier Part Number (MPN): 6410-12-08-O

Alternate Part Numbers: AFF1010-1208S

Specifications

Connection Size 1
3/4 in
Connection Size 2
1/2 in
Connection Type
Female SAE ORB, Male SAE ORB
Connection Type 1
Male SAE ORB
Connection Type 2
Female SAE ORB
Dimension Standards
SAE J1926
Dimensions
1.48 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Reducer
Hex Size
1-1/4
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
5000 psi
Operating Temperature
-40 to 250 deg F
Series
6410-O Series
Thread Size
3/4-16 x 1-1/16-12

Product Questions & Answers (1)

Question by: Melvin R on Dec 20, 2025, 3:31 PM
Just want to make sure I'm understanding this right - this fitting goes from a size 12 to a size 8, right?
Answer by: Customer Support on Dec 22, 2025, 6:08 AM
That's correct. This straight reducer is designed to step down from a 12 Male O-Ring Boss to an 8 Female O-Ring Boss configuration.

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