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Steel Adapter, 1/4-18 Female NPT To 7/16-20 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

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A
1.16
Alternate Part Numbers
Alternate Part Number 2104-2216-4-4, Alternate Part Number 30799, Alternate Part Number 6405-04-04, Alternate Part Number A2216-4-4S, Alternate Part Number C1BX41, Alternate Part Number MI-00316632, Alternate Part Number MINO-00028F64296
Brand
Brennan Industries Inc
Brand
Brennan Industries
Pack Size
1.00
UOM
EA
Supplier Part Number
6405-04-04-O
Thread 1
1/4-18
Thread 2
7/16-20
Thread Sealant
No
Product Weight
0.08 lbs
Product Questions & Answers 1

Product Questions & Answers

got a port on my hydraulic block that's NPT female and I need to tie into a SAE O-ring boss line, this the right piece for that?
Question by: Billy B on Sep 29, 2025, 10:03 AM
For a 1/4-18 female NPT port connecting to a 7/16-20 male SAE O-ring boss fitting, yeah, that's exactly what this adapter is built for. The NPT end threads into your block and the ORB end gives you a metal-to-metal seal with the O-ring, so you're not relying on tape or thread sealant to hold pressure. Steel construction means it'll hold up in typical industrial hydraulic setups without issues.
Answer by: Customer Support on Oct 1, 2025, 8:19 AM

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