Steel Adapter, 9/16-18 Male SAE O-Ring Boss (Straight Thread O-Ring) To 1/2-14 Male NPT, Straight

Description & Features

Optimize your industrial hydraulic connections with this reliable steel adapter. Engineered by Brennan Industries Inc this adapter serves as an essential component for efficient fluid transfers. Featuring a 9/16-18 male SAE O-Ring Boss (Straight Thread O-Ring) to 1/2-14 male NPT this adapter is designed for precise threading and secure sealing.

The robust construction ensures durability and longevity in demanding environments. It eliminates leakage providing a dependable solution for connecting different types of threads in hydraulic systems. The absence of thread sealant enhances adaptability across various applications.

Its seamless integration into complex setups underscores its significance in maintaining the integrity of fluid handling systems. This specific model identified by catalog number C1EK75 and supplier part number 6401-06-08-O meets the high standards set by industry professionals.

MPN: C1EK75

Supplier Part Number: 6401-06-08-O

Specifications

Alternate Part Numbers
Alternate Part Number 6401-06-08, Alternate Part Number C1EK75, Alternate Part Number MI-01502361, Alternate Part Number MINO-00028J26125
Brand
Brennan Industries Inc
Brand
Brennan Industries
Pack Size
1.00
UOM
EA
L
1.39
Supplier Part Number
6401-06-08-O
Thread 1
9/16-18
Thread 2
1/2-14
Thread Sealant
No
Product Weight
0.13 lbs

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Product Questions & Answers (2)

Question by: Diane K on Apr 15, 2025, 9:20 AM
Will this adapter work with regular pipe threads, or does it need special O-rings?
Answer by: Customer Support on Apr 17, 2025, 6:09 AM
This adapter is designed with a 9/16-18 male SAE O-Ring Boss (Straight Thread O-Ring) on one end and a 1/2-14 male NPT on the other, so it's specifically for connecting straight thread O-ring ports to NPT threads.
Question by: Carl B on Sep 16, 2025, 9:22 AM
Got a fitting that's 1/2 NPT male on one end and need to tie into a straight thread O-ring port, this the right piece for that?
Answer by: Customer Support on Sep 18, 2025, 9:03 AM
That's what this adapter is built for. One end is a 9/16-18 male SAE O-Ring Boss thread, which seats directly into a straight thread O-ring port. The other end is a 1/2-14 male NPT, so it threads into standard NPT female connections. Both thread sizes are confirmed, so if your setup matches those specs, you're good to go.