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Steel Adapter, 3/8-18 Male NPT To 3/4-16 Female SAE O-Ring Boss (Straight Thread O-Ring), Straight

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A
1.45
Alternate Part Numbers
Alternate Part Number C1BD39, Alternate Part Number MI-00319352, Alternate Part Number MINO-00015F65418
Application
Marine/Military, Chemical Processing, Pulp and Paper Industries, Food and Beverage Processing, Off-Shore Drilling
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13555
End Size 1
0.38
End Size 2
0.75
End Type 1
NPTF
End Type 2
SAE ORB
Minimum Working Temperature
-40
Supplier Part Number
2246-6-8S
Thread 1
3/8-18
Thread 2
3/4-16
Thread Sealant
No
Product Weight
0.17 lbs
Product Questions & Answers 3

Product Questions & Answers

got a port that’s 3/4-16 straight thread ORB, will this adapter take that on the female side and still give me 3/8-18 pipe on the other end?
Question by: Lee B on Aug 24, 2025, 7:13 AM
On the female end you get a 3/4-16 SAE O Ring Boss (straight thread O Ring) connection, and the other end is a 3/8-18 male NPTF pipe thread. It is a straight pipe to straight thread O Ring adapter.
Answer by: Customer Support on Aug 26, 2025, 6:17 AM
Will this adapter work with standard NPT fittings, or do I need something special?
Question by: Jimmy P on Jan 22, 2026, 6:18 AM
This adapter is designed with a 3/8-18 Male NPT fitting, so it'll work with standard NPT fittings. The other end is a 3/4-16 Female SAE O-Ring Boss.
Answer by: Customer Support on Jan 23, 2026, 8:08 PM
Got a port on a hydraulic valve block that's tapped 3/4-16 SAE and I need to run a 3/8 NPT line off it. This the right adapter for that?
Question by: Gary R on May 26, 2025, 2:11 PM
That's what this one's built for. The male end threads into your NPT fitting or port at 3/8-18, and the female end accepts a 3/4-16 SAE O-ring Boss connection on the other side. The O-ring Boss end seals against the face of the port using an O-ring, which keeps things tight without relying on thread deformation the way tapered pipe threads do. Straight configuration means no offset, so it works cleanest when both ports are facing the same direction.
Answer by: Customer Support on May 28, 2025, 6:37 AM

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