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

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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
Product Questions & Answers 2

Product Questions & Answers

Will this adapter work with regular pipe threads, or does it need special O-rings?
Question by: Diane K on Apr 15, 2025, 9:20 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.
Answer by: Customer Support on Apr 17, 2025, 6:09 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?
Question by: Carl B on Sep 16, 2025, 9:22 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.
Answer by: Customer Support on Sep 18, 2025, 9:03 AM

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