SAME DAY SHIPPING
— Order by 2pm EST.
Toggle Nav
Cart
Search
main product photo

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

Ask A Question

Description & Features

Part of the Eaton Aeroquip 2066 Series, this Steel Adapter, 1/4-18 Female NPT Swivel To 7/16-20 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight provides a reliable straight connection between female NPT swivel and male SAE O-ring boss ports. The steel construction and O-ring boss sealing make it well suited for hydraulic and fluid power systems where leak-free performance is a priority.

Designed for use across demanding industrial environments, this adapter is appropriate for marine and military equipment, chemical processing, pulp and paper, food and beverage processing, and offshore drilling applications. The swivel end allows for easier installation and alignment during assembly without twisting lines.

SKU: 2066-4-4S

Supplier Part Number (MPN): 2066-4-4S

Alternate Part Numbers: C1AZ74, MI-00321804, MINO-00015F66126

Specifications

A
1.05
Alternate Part Numbers
Alternate Part Number C1AZ74, Alternate Part Number MI-00321804, Alternate Part Number MINO-00015F66126, Alternate Part Number MINO-00925X09323
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
0.25
End Size 2
0.44
End Type 1
NPSM
End Type 2
SAE ORB
Hex Size 2
0.69
Minimum Working Temperature
-40
Supplier Part Number
2066-4-4S
Thread 1
1/4-18
Thread 2
7/16-20
Thread Sealant
No
Product Weight
0.06 lbs

Related Documents

Similar Products

Model Number Thread 1 Thread 2 A Price Action
Steel Adapter, 1-11-1/2 Female NPT Swivel To 1-5/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2066-16-16S Steel Female NPT To Male ORB Adapter

1-11-1/2

1-5/16-12

1.59

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

2066-4-4S Steel Female NPT To Male ORB Adapter

1/4-18

7/16-20

1.05

Steel Adapter, 3/4-14 Female NPT Swivel To 1-1/16-12 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2066-12-12S Steel Female NPT To Male ORB Adapter

3/4-14

1-1/16-12

1.58

Steel Adapter, 1/4-18 Female NPT Swivel To 9/16-18 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2066-4-6S Steel Female NPT To Male ORB Adapter

1/4-18

9/16-18

1.14

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

2066-6-6S Steel Female NPT To Male ORB Adapter

3/8-18

9/16-18

1.14

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

2066-6-8S Steel Female NPT To Male ORB Adapter

3/8-18

3/4-16

1.19

Steel Adapter, 1/2-14 Female NPT Swivel To 7/8-14 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

2066-8-10S Steel Female NPT To Male ORB Adapter

1/2-14

7/8-14

1.3

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

2066-8-8S Steel Female NPT To Male ORB Adapter

1/2-14

3/4-16

1.23

Steel Adapter, 1/2-14 Female NPT Swivel To 9/16-18 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6900-06-08-O Steel Female NPT To Male ORB Adapter

1/2-14

9/16-18

1.23

Steel Adapter, 1/4-18 Female NPT Swivel To 3/4-16 Male SAE O-Ring Boss (Straight Thread O-Ring), Straight

6900-08-04-O Steel Female NPT To Male ORB Adapter

1/4-18

3/4-16

1.22

Product Questions & Answers (3)

Question by: Freddie R on Jun 6, 2025, 6:42 PM
i’ve got a hose with a 1/4-18 female swivel on it. is this the piece that’ll adapt me over to a 7/16-20 SAE o-ring boss port?
Answer by: Customer Support on Jun 8, 2025, 4:23 PM
From a fit standpoint, it matches that exact transition. One end is a 1/4-18 female NPT swivel (NPSM), and the other end is a 7/16-20 male SAE O-ring boss (SAE ORB) straight thread.
Question by: Bobby W on May 1, 2025, 5:12 PM
got a 1/4-18 female NPT port on a pump i'm trying to tie into a 7/16-20 SAE O-ring boss fitting, is this the right adapter for that, or am i looking at the wrong part?
Answer by: Customer Support on May 2, 2025, 9:45 PM
That's exactly what this adapter is built for. One end is 1/4-18 female NPT swivel, the other is 7/16-20 male SAE O-ring boss straight thread. If your pump port is a 7/16-20 ORB and you're running NPT on the line side, this connects those two directly without any intermediate fittings.
Question by: Brenda M on Feb 16, 2026, 6:42 PM
Will this adapter work for hydraulic systems in a marine environment?
Answer by: Customer Support on Feb 18, 2026, 11:05 AM
Yes, this adapter is suitable for marine applications. It's also designed for use in chemical processing, pulp and paper industries, and food and beverage processing, so it's built to withstand demanding environments.