Enhance the performance of industrial systems with this BRENNAN Industries Inc. Steel Adapter.
This adapter features a 3/4-16 Male SAE O-Ring Boss connection and a 3/4-14 Male NPT connection, ensuring secure and reliable linking of components. Designed for robust industrial use, this steel adapter offers exceptional durability and dependability.
Constructed from high-quality materials, it withstands demanding environments and provides excellent resistance to wear and corrosion. The solid design guarantees no need for thread sealant, ensuring a tight, leak-free fit.
Suitable for various industrial applications requiring Pipe to Straight Thread O-Ring connections, this adapter meets rigorous industry standards, ensuring optimal performance and longevity. The straightforward installation process and compatibility with standard equipment make this adapter an ideal choice for professional settings.
Supplier Part Number: 6401-08-12-O
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Specifications
Alternate Part Numbers
Alternate Part Number6401-08-12, Alternate Part Number C1DY20, Alternate Part Number C1EK78, Alternate Part Number MI-00445148, Alternate Part Number MINO-00028I01844
Brand
Brennan Industries Inc
Brand
Brennan Industries
Pack Size
1.00
UOM
EA
L
1.59
Supplier Part Number
6401-08-12-O
Thread 1
3/4-16
Thread 2
3/4-14
Thread Sealant
No
Product Weight
0.23 lbs
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Product Questions & Answers (2)
Question by: Janice D on Feb 8, 2026, 9:53 AM
So this'll go from a pipe thread to a straight thread with an O-ring, right? Just wanna make sure I'm gettin' the right thing.
Answer by: Customer Support on Feb 9, 2026, 11:17 AM
Exactly. This steel adapter converts from a 3/4-14 male NPT (pipe thread) to a 3/4-16 male SAE O-ring boss (straight thread O-ring).
Question by: Gene W on Dec 30, 2025, 1:49 PM
got a hose end with 3/4-16 ORB on it and my port is 3/4-14 NPT. is this the right adapter to tie those together?
Answer by: Customer Support on Jan 1, 2026, 9:25 AM
It bridges a 3/4-16 male SAE O-ring boss connection over to a 3/4-14 male NPT connection, straight style. If those are the two thread types and sizes you are trying to join, this adapter matches that ORB-to-NPT combination.
