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

Steel Adapter, 1/4-18 Male NPT To 9/16-18 Female JIC 37 deg Flare Swivel, Straight

Ask A Question

Description & Features

Manufactured by Eaton Aeroquip, this straight steel adapter connects a 1/4-18 Male NPT thread to a 9/16-18 Female JIC 37-degree flare swivel, making it well-suited for hydraulic systems that require a reliable transition between NPT and JIC fittings. The swivel end allows for easier line positioning and assembly without twisting the connected hose or tube.

The Steel Adapter, 1/4-18 Male NPT To 9/16-18 Female JIC 37 deg Flare Swivel, Straight is part of the Eaton Aeroquip 2018 Series and carries catalog number C1AU66. It is designed for demanding service environments including marine and military, chemical processing, pulp and paper, food and beverage processing, and offshore drilling applications.

SKU: 2018-4-6S

Supplier Part Number (MPN): 2018-4-6S

Alternate Part Numbers: C1AU66, MI-00305325, MINO-00015F54244

Specifications

A
1.59
Alternate Part Numbers
Alternate Part Number C1AU66, Alternate Part Number MI-00305325, Alternate Part Number MINO-00015F54244
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
0.25
End Size 2
0.56
End Type 1
NPTF
End Type 2
SAE 37
Hex Size 2
0.69
Minimum Working Temperature
-40
Supplier Part Number
2018-4-6S
Thread 1
1/4-18
Thread 2
9/16-18
Thread Sealant
No
Tube O.D.
0.38
Tube O.D.
0.38
Product Weight
0.08 lbs

Related Documents

Similar Products

Model Number Tube O.D. Thread 1 Thread 2 A Price Action
Steel Adapter, 3/4-14 Male NPT To 1-1/16-12 Female JIC 37 deg Flare Swivel, Straight

2018-12-12S Steel Male NPT To Female JIC Adapter

0.75

3/4-14

1-1/16-12

2.15

Steel Adapter, 1-11-1/2 Male NPT To 1-5/16-12 Female JIC 37 deg Flare Swivel, Straight

2018-16-16S Steel Male NPT To Female JIC Adapter

1

1-11-1/2

1-5/16-12

2.54

Steel Adapter, 1/4-18 Male NPT To 9/16-18 Female JIC 37 deg Flare Swivel, Straight

2018-4-6S Steel Male NPT To Female JIC Adapter

0.38

1/4-18

9/16-18

1.59

Steel Adapter, 3/8-18 Male NPT To 3/4-16 Female JIC 37 deg Flare Swivel, Straight

2018-6-8S Steel Male NPT To Female JIC Adapter

0.5

3/8-18

3/4-16

1.74

Steel Adapter, 1/2-14 Male NPT To 3/4-16 Female JIC 37 deg Flare Swivel, Straight

2018-8-8S Steel Male NPT To Female JIC Adapter

0.5

1/2-14

3/4-16

Steel Adapter, 1/8-27 Male NPT To 7/16-20 Female JIC 37 deg Flare Swivel, Straight

2018-2-4S Steel Male NPT To Female JIC Adapter

0.25

1/8-27

7/16-20

1.32

Steel Adapter, 1-1/4-11-1/2 Male NPT To 1-5/8-12 Female JIC 37 deg Flare Swivel, Straight

2018-20-20S Steel Male NPT To Female JIC Adapter

1.25

1-1/4-11-1/2

1-5/8-12

2.78

Steel Adapter, 3/8-18 Male NPT To 9/16-18 Female JIC 37 deg Flare Swivel, Straight

2018-6-6S Steel Male NPT To Female JIC Adapter

0.38

3/8-18

9/16-18

1.72

Steel Adapter, 1/4-18 Male NPT To 1/2-20 Female JIC 37 deg Flare Swivel, Straight

6505-04-05 Steel Male NPT To Female JIC Adapter

0.31

1/4-18

1/2-20

1.41

Steel Adapter, 3/8-18 Male NPT To 7/8-14 Female JIC 37 deg Flare Swivel, Straight

6505-06-10 Steel Male NPT To Female JIC Adapter

0.63

3/8-18

7/8-14

1.86

Steel Adapter, 1/2-14 Male NPT To 1-1/16-12 Female JIC 37 deg Flare Swivel, Straight

6505-08-12 Steel Male NPT To Female JIC Adapter

0.75

1/2-14

1-1/16-12

2.17

Steel Adapter, 3/4-14 Male NPT To 7/8-14 Female JIC 37 deg Flare Swivel, Straight

6505-12-10 Steel Male NPT To Female JIC Adapter

0.63

3/4-14

7/8-14

1.93

Steel Adapter, 1-1/2-11-1/2 Male NPT To 1-7/8-12 Female JIC 37 deg Flare Swivel, Straight

6505-24-24 Steel Male NPT To Female JIC Adapter

1.5

1-1/2-11-1/2

1-7/8-12

2.93

Steel Adapter, 1/4-18 Male NPT To 7/16-20 Female JIC 37 deg Flare Swivel, Straight

6505-04-04 Steel Male NPT To Female JIC Adapter

0.25

1/4-18

7/16-20

1.45

Steel Adapter, 3/8-18 Male NPT To 9/16-18 Female JIC 37 deg Flare Swivel, Straight

6505-0606 Steel Male NPT To Female JIC Adapter

0.38

3/8-18

9/16-18

1.72

Steel Adapter, 1/2-14 Male NPT To 7/8-14 Female JIC 37 deg Flare Swivel, Straight

6505-0810 Steel Male NPT To Female JIC Adapter

0.5

1/2-14

7/8-14

2.28

Steel Adapter, 3/4-14 Male NPT To 1-5/16-12 Female JIC 37 deg Flare Swivel, Straight

6505-1216 Steel Male NPT To Female JIC Adapter

1

3/4-14

1-5/16-12

2.4

Product Questions & Answers (3)

Question by: Keith B on Aug 29, 2025, 10:05 AM
got a hose end that’s 9/16-18 JIC, what does the other side of this adapter screw into?
Answer by: Customer Support on Aug 30, 2025, 8:41 PM
On the pipe side, it’s a 1/4-18 male NPTF thread. The other end is a 9/16-18 female JIC 37 degree flare swivel, so it mates to a JIC 37 degree male flare.
Question by: Brett S on Jun 28, 2025, 3:29 PM
what industries is this adapter actually rated for? we run a paper mill and need something that holds up
Answer by: Customer Support on Jun 30, 2025, 6:05 AM
Marine, military, chemical processing, pulp and paper, food and beverage, and offshore drilling are all listed applications for this fitting. Pulp and paper specifically is called out, so it lines up with what you're running. The Eaton Aeroquip 2018 series has a solid track record in those kinds of wet, corrosive process environments.
Question by: Marvin C on Jul 10, 2025, 9:45 PM
Will this adapter work okay in a marine environment?
Answer by: Customer Support on Jul 12, 2025, 12:01 PM
Given its listed applications including marine environments, this adapter should be suitable for such use.