10MFS-10MFS BULKHEAD UNION W/LOCKNUT

Description & Features

The 10MFS-10MFS Bulkhead Union with Locknut is a precision-engineered solution by Brennan Industries Inc designed for secure connections in industrial environments. This bulkhead union features a 5/8" tube O.D. and incorporates a robust locking mechanism ensuring reliability and stability. Crafted to meet high standards the 10MFS-10MFS Bulkhead Union supports seamless integration with a 1-14 threaded connection on both ends. Its overall length of 2.62" and hex dimension of 1.312" provide a compact yet effective design for various industrial applications. Notably it includes an FS0306-10 locknut facilitating easy assembly and maintenance. Ideal for systems needing a durable and efficient connection component this bulkhead union excels in performance where consistent flow and secure fittings are critical. **Supplier Part Number**: FS2700-LN-10-10

Specifications

Brand
BRENNAN
a1 Drill Dimensions
0.484 in
a2 Drill Dimensions
0.484 in
Connection Size 1
5/8 in
Connection Size 2
5/8 in
Connection Type
Male ORFS
Connection Type 1
Male SAE ORFS
Connection Type 2
Male SAE ORFS
Dimension Standards
SAE J1453, SAE J515
Dimensions
2.62 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Union
Hex Size
1.312 in
Locknut Assembled
FS0306-10
Material
Steel
Material Construction
AISI 12L14/1045 Steel
Maximum Operating Pressure
6000 psi
Operating Temperature
-40 to 250 deg F
Series
FS2700-LN Series
Thread Size
1-14S
Tube Outside Diameter
5/8 in

Product Questions & Answers (1)

Question by: Pete W on Jan 12, 2026, 9:56 AM
what's the thread spec on both ends of this bulkhead union, and does it use the same size on each side?
Answer by: Customer Support on Jan 14, 2026, 7:37 AM
Both ends run a 1-14 thread, so you've got a matched connection on either side. The tube O.D. is 5/8" across the board, and the drill size comes in at 0.484 on both A1 and A2. Pretty straightforward setup if you're fitting it into a panel or bulkhead wall and need consistent specs end to end.

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