BRENNAN INDUSTRIES INC offers this Steel Adapter designed for industrial applications where high reliability is essential. This adapter features a 1-5/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring) connection to a 1-11-1/2 Male NPT ensuring solid performance in a range of demanding environments.
Its construction from durable steel material makes it robust and suited for heavy-duty tasks. The 6401-16-16-O adapters design ensures a secure connection without the need for thread sealant maintaining a clean and efficient assembly process. Additionally the exact threading specifications match standard requirements facilitating compatibility and ease of use.
This component is ideal for use in systems requiring precise leak-free connections. Manufactured by Brennan Industries Inc known for their high-quality industrial components this adapter meets stringent standards providing dependable performance over extended use.
Supplier Part Number: 6401-16-16-O
Loading related products…
Specifications
Alternate Part Numbers
Alternate Part NumberC1EK84, Alternate Part Number MI-00319308, Alternate Part Number MINO-00028F65397
Brand
Brennan Industries Inc
Brand
Brennan Industries
Pack Size
1.00
UOM
EA
L
1.90
Supplier Part Number
6401-16-16-O
Thread 1
1-5/16-12
Thread 2
1-11-1/2
Thread Sealant
No
Product Weight
0.48 lbs
Similar Products
Model Number
Thread 1
Thread 2
L
Price
Action
6401-08-06-OSteel Male ORB To NPT Adapter
3/4-16
3/8-18
1.36
6401-08-08-OSteel Male ORB To NPT Adapter
3/4-16
1/2-14
1.55
6401-08-12-OSteel Male ORB To NPT Adapter
3/4-16
3/4-14
1.59
6401-10-06-OSteel Male ORB To NPT Adapter
7/8-14
3/8-18
1.56
6401-10-08-OSteel Male ORB To NPT Adapter
7/8-14
1/2-14
1.69
6401-12-08-OSteel Male ORB To NPT Adapter
1-1/16-12
1/2-14
1.84
6401-12-12-OSteel Male ORB To NPT Adapter
1-1/16-12
3/4-14
1.73
6401-04-02-OSteel Male ORB To NPT Adapter
7/16-20
1/8-27
1.07
6401-06-02-OSteel Male ORB To NPT Adapter
9/16-18
1/8-27
1.11
6401-06-04-OSteel Male ORB To NPT Adapter
9/16-18
1/4-18
1.29
6401-06-06-OSteel Male ORB To NPT Adapter
9/16-18
3/8-18
1.3
6401-06-08-OSteel Male ORB To NPT Adapter
9/16-18
1/2-14
1.39
6401-08-04-OSteel Male ORB To NPT Adapter
3/4-16
1/4-18
1.24
6401-10-12-OSteel Male ORB To NPT Adapter
7/8-14
3/4-14
1.77
6401-16-16-OSteel Male ORB To NPT Adapter
1-5/16-12
1-11-1/2
1.9
6401-20-20-OSteel Male ORB To NPT Adapter
1-5/8-12
1-1/4-11-1/2
2.17
Product Questions & Answers (2)
Question by: Lyle G on Jul 2, 2025, 7:59 AM
Does this adapter go straight from ORB to NPT without needing any sealant on the threads?
Answer by: Customer Support on Jul 4, 2025, 6:38 AM
The SAE O-Ring Boss side handles sealing through the O-ring itself, so no thread sealant is needed on that end. The male NPT side follows standard tapered pipe thread practice, which typically relies on the thread engagement to form a mechanical connection. Because both ends are male, this adapter is meant to bridge an ORB port on one component to an NPT female port on the other, keeping the assembly clean and straightforward.
Question by: Patty R on Sep 24, 2025, 2:58 PM
So, this adapter... it'll let me hook up a SAE O-ring to a NPT pipe, right? Just wanna make sure I'm understanding it correctly.
Answer by: Customer Support on Sep 26, 2025, 10:03 AM
Functionally, yes, it adapts a 1-5/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring) connection to a 1-11-1/2 Male NPT connection. It's a straight adapter, not an angled one.
