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Steel Adapter, 3/8-18 Female NPT To 9/16-18 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

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A
1.16
Alternate Part Numbers
Alternate Part Number 621-1803, Alternate Part Number 6405-06-06, Alternate Part Number A2216-6-6S, Alternate Part Number C1BX45, Alternate Part Number MI-00316637, Alternate Part Number MINO-00028F64297
Brand
Brennan Industries Inc
Brand
Brennan Industries
Pack Size
1.00
UOM
EA
Supplier Part Number
6405-06-06-O
Thread 1
3/8-18
Thread 2
9/16-18
Thread Sealant
No
Product Weight
0.13 lbs
Product Questions & Answers 1

Product Questions & Answers

got a fitting with a 3/8 NPT female port and need to hook up a SAE O-ring boss male line to it, this the right adapter for that?
Question by: Gary R on Dec 22, 2025, 11:20 AM
That's what this one's built for. One end is 3/8-18 female NPT and the other is 9/16-18 male SAE O-Ring Boss, so it bridges those two thread standards in a straight configuration. No thread sealant needed on the ORB side either, which keeps the install clean and straightforward.
Answer by: Customer Support on Dec 24, 2025, 6:22 AM

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