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Steel Adapter, 3/4-14 Male NPT Countersunk Hex Plug

Description & Features

The Steel Adapter 3/4-14 Male NPT Countersunk Hex Plug from Brennan Industries Inc. is meticulously designed to serve industrial pipe-to-pipe applications. This high-quality steel adapter ensures robust connections featuring a 3/4-14 thread size that promises compatibility and reliability for your engineering needs.

Engineered with precision this countersunk hex plug boasts a sturdy construction making it ideal for demanding environments. The Allen head design provides ease of installation and removal allowing for efficient maintenance and adjustments. With its no-thread sealant feature it guarantees leak-free performance under various conditions.

Manufactured to the highest standards this steel adapter ensures durability and long-lasting performance. The hex plug is expertly crafted to meet rigorous industry specifications providing a dependable solution for pipe-to-pipe connections.

MPN: C1FA72

Supplier Part Number: 5406-HP-12

Specifications

A 0.62	Alternate Part Numbers Alternate Part Number 5406-HHP-12, Alternate Part Number A2222-12S, Alternate Part Number C1FA72, Alternate Part Number MI-00347850, Alternate Part Number MINO-00028F82905	B 0.56	Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 5406-HP-12	Thread 1 3/4-14	Thread Sealant No	Product Weight 0.10 lbs

Similar Products

Model Number	Thread 1	A	B
2222-6S Steel NPT Socket Hex Plug	3/8-18	0.46	0.31
2222-8S Steel NPT Socket Hex Plug	1/2-14	0.61	0.38
2222-2S Steel NPT Socket Hex Plug	1/8-27	0.3	0.19
2222-4S Steel NPT Socket Hex Plug	1/4-18	0.46	0.25
5406-HP-12 Steel NPT Socket Hex Plug	3/4-14	0.62	0.56
5406-HP-16 Steel NPT Socket Hex Plug	1-11-1/2	0.77	0.63
5406-HP-20 Steel NPT Socket Hex Plug	1-1/4-11-1/2	0.83	0.75
5406-HP-24 Steel NPT Socket Hex Plug	1-1/2-11-1/2	0.83	1

Product Questions & Answers (2)

Question by: Clint S on Nov 5, 2025, 7:27 PM

What size Allen wrench do I need for this plug?

Answer by: Customer Support on Nov 7, 2025, 4:11 PM

The countersunk hex design accommodates an Allen wrench for easy installation and adjustments.

Question by: Jimmy T on Jul 17, 2025, 4:30 PM

got a 3/4-14 NPT port I need to cap off on a steel manifold block, this the right plug for that?

Answer by: Customer Support on Jul 19, 2025, 6:32 AM

For a 3/4-14 NPT port, yeah, this one fits. The thread size matches exactly, and the male NPT configuration is built for pipe-to-pipe connections on steel components like manifold blocks. The countersunk hex design means you drive it with an Allen wrench rather than a standard wrench, so keep that in mind if you're working in a tight spot.