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06MFS-08MAORB STRAIGHT

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Description & Features

Manufactured by Brennan Industries Inc this high-quality adapter is designed to meet the demanding specifications of modern industrial applications. Featuring a 3/8 inch tube outer diameter the 06MFS-08MAORB STRAIGHT ensures compatibility with various systems.

With an overall length of 1.381 inches and a hex size of 0.875 inches the adapter offers robust performance and reliability. The product includes an 11/16-16 thread on side A and a 3/4-16 thread on side B making it versatile for a range of connections.

Series FS6400-O provides optimal durability and efficiency. The meticulously crafted drill holes of 0.264 inches on both ends enhance the product's compatibility and functionality in critical applications.

Supplier Part Number: FS6400-06-08-O

Specifications

Brand
BRENNAN
a Drill Dimensions
0.264 in
b Drill Dimensions
0.264 in
Connection Size 1
3/8 in
Connection Size 2
1/2 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
1.381 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
7/8 in
Material
Steel
Material Construction
AISI 12L14/C1045 Steel
Operating Temperature
-40 to 250 deg F
Series
FS6400-O Series
Thread Size
11/16-16 x 3/4-16
Tube OD
3/8 in
Tube Outside Diameter
0.38 in

Product Questions & Answers (3)

Question by: Donna A on Nov 16, 2025, 10:07 AM
what's the tube OD on this adapter and does it work with a 3/4-16 thread on one end?
Answer by: Customer Support on Nov 18, 2025, 6:00 AM
you got it right on both counts. The tube outer diameter is 3/8 inch, and one end does run a 3/4-16 thread. The other end carries an 11/16-16 thread, so make sure both sides line up with what you're connecting to before you order.
Question by: Duane H on Jan 14, 2026, 7:24 AM
got an old Brennan fitting marked FS6400-06-08-O, is this the same straight adapter or am i mixing it up
Answer by: Customer Support on Jan 16, 2026, 6:12 AM
Match the supplier part number and you are on the right one. This adapter’s supplier part number is FS6400-06-08-O, and it’s a straight style in the Brennan FS6400-O series.
Question by: Terry M on May 7, 2025, 6:36 AM
Will this fitting work with a 3/8" OD tube, or do I need a different size?
Answer by: Customer Support on May 9, 2025, 6:46 AM
This adapter is designed for use with a 3/8 inch outer diameter tube, according to the product specifications.

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