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Steel Adapter, 1/2-14 Female NPT Swivel To 3/4-16 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

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Description & Features

Part of the Eaton Aeroquip 2066 Series, this steel straight adapter connects a 1/2-14 female NPT swivel to a 3/4-16 male SAE O-ring boss (straight thread O-ring) in a compact, straight configuration. The swivel end allows for rotational adjustment during installation, reducing stress on connected lines and simplifying alignment in tight assemblies.

The Steel Adapter, 1/2-14 Female NPT Swivel To 3/4-16 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight is suited for demanding service environments including marine and military, chemical processing, pulp and paper, food and beverage processing, and offshore drilling applications. Steel construction provides durability across a broad range of hydraulic system conditions.

Catalog reference C1AZ79 applies to this adapter within Eaton Aeroquip's published documentation.

SKU: 2066-8-8S

Supplier Part Number (MPN): 2066-8-8S

Alternate Part Numbers: C1AZ79, MI-00321866, MINO-00015F66136

Specifications

A
1.23
Alternate Part Numbers
Alternate Part Number C1AZ79, Alternate Part Number MI-00321866, Alternate Part Number MINO-00015F66136, Alternate Part Number MINO-00925X09329
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
13553
End Gender 2
13556
End Size 1
0.50
End Size 2
0.75
End Type 1
NPSM
End Type 2
SAE ORB
Hex Size 2
0.88
Minimum Working Temperature
-40
Supplier Part Number
2066-8-8S
Thread 1
1/2-14
Thread 2
3/4-16
Thread Sealant
No
Product Weight
0.16 lbs

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Product Questions & Answers (3)

Question by: Randy K on Dec 28, 2025, 1:24 PM
Got a port on my hydraulic manifold that's 3/4-16 SAE O-ring boss. Will this adapter let me thread in a 1/2 NPT female line without a bunch of extra fittings in the way?
Answer by: Customer Support on Dec 30, 2025, 6:35 AM
Straight shot, no extra pieces needed. The 2066-8-8S threads directly into a 3/4-16 SAE O-ring boss port on one end, and the other end accepts a 1/2-14 female NPT swivel connection. That swivel feature on the NPT side helps with alignment when you're making up the connection, which cuts down on the wrestling match you'd otherwise have getting everything to line up clean.
Question by: Kent A on Apr 9, 2025, 5:35 PM
got a hose end with 1/2-14 female npt swivel, will this screw right onto that and give me a 3/4-16 sae o-ring boss on the other side?
Answer by: Customer Support on Apr 11, 2025, 4:23 PM
For a straight adapter that goes from pipe to SAE O-ring Boss, this part is set up exactly that way: one end is 1/2-14 female NPT swivel and the other end is a 3/4-16 male SAE O-ring boss straight thread.
Question by: Gene H on Oct 2, 2025, 1:34 PM
Will this fitting work to connect a female NPT pipe thread to a SAE O-ring boss?
Answer by: Customer Support on Oct 3, 2025, 3:55 PM
This adapter directly connects a 1/2-14 female NPT swivel to a 3/4-16 male SAE O-ring boss. It's a straight adapter, as the name suggests.