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Steel Adapter, 1/2-14 Male NPT To 3/4-16 Male JIC 37 deg Flare, Straight Bulkhead

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Description & Features

Engineered for reliable and precise connections, the BRENNAN INDUSTRIES INC Steel Male NPT to JIC Bulkhead Adapter facilitates seamless fluid transfer in industrial settings.

Designed with a 1/2-14 Male NPT thread and a 3/4-16 Male JIC 37deg; Flare, this straight bulkhead adapter ensures accurate alignment and secure fitment. This steel adapter is built to withstand high-pressure environments, offering durability and consistent performance.

The inclusion of a locknut enhances the stability of connections, ensuring a firm and immovable seal. Providing a robust and secure solution, this adapter is essential for industrial fluid and hydraulic applications.

MPN: {{ecc_mpn}}

Supplier Part Number: 2706-08-08

Specifications

a Dimensions
2.57 in
Connection Size 1
1/2 in
Connection Size 2
1/2 in
Connection Type
Male JIC, MNPT
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Male NPTF
Dimension Standards
SAE J476/J514
Dimensions
2.6 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
1 x 1 in
Material
Steel
Material Construction
AISI 12L14/C1045 Steel
Maximum Operating Pressure
6000 psi
Series
2706 Series
Thread Sealant
Without Thread Sealant
Thread Size
3/4-16 x 1/2-14
Tube OD
1/2 in
Tube Outside Diameter
1/2 in

Product Questions & Answers (3)

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Question by: Lynn K on Jul 31, 2025, 2:13 PM
trying to hook a pipe thread port up to a JIC hose end, is this the right adapter?
Answer by: Customer Support on Aug 2, 2025, 6:08 AM
For connecting a 1/2-14 male NPT to a 3/4-16 male JIC 37 degree flare, this straight bulkhead adapter matches those two thread ends.
Question by: Neil P on Feb 28, 2026, 7:49 AM
got a panel i need to run a fitting through, does this one come with the locknut already, or is that something i'd have to track down separate?
Answer by: Customer Support on Mar 2, 2026, 6:02 AM
The locknut is included with this adapter. That bulkhead setup needs it to clamp securely against the panel, so Brennan builds it right into the assembly. You won't need to source anything extra to get a solid, stable mount.
Question by: Floyd J on Jul 28, 2025, 12:28 PM
got a hose end with a 3/4-16 jic on it and my port is 1/2 npt. is this the right straight bulkhead piece to tie those together
Answer by: Customer Support on Jul 30, 2025, 6:39 AM
For tying those two thread types together through a panel, this adapter matches a 1/2-14 male NPT on one side and a 3/4-16 male JIC 37 degree flare on the other, in a straight bulkhead style.

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