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

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Description & Features

This steel adapter is a straight fitting with a 3/8-18 Female NPT to 3/4-16 Male JIC 37 deg Flare connection. This Eaton Aeroquip adapter is suitable for use in demanding applications such as marine, military, chemical processing, pulp and paper, food and beverage, and off-shore drilling.

The overall length (A) of this steel adapter is 1.56 inches. Refer to the attached fluid compatibility document for appropriate usage.

SKU: 2022-6-8S

Supplier Part Number (MPN): 2022-6-8S

Alternate Part Numbers: C1AV59, MI-00312029, MINO-00015F61353

Specifications

Connection Size 1
1/2 in
Connection Size 2
3/8 in
Connection Type
FNPT, Male JIC
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Female NPTF
Dimension Standards
SAE 070103/J514
Dimensions
1.56 in L
Finish
Dura-Kote™
Fitting Type
Adapter
Hex Size
7/8 in
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-40 to 250 deg F
Series
2022 Series
Thread Size
3/4-16 x 3/8-18
Tube OD
1/2 in

Product Questions & Answers (3)

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Question by: Peggy S on Jan 4, 2026, 2:26 PM
Will this adapter work for connecting a 3/8 NPT female to a 3/4 JIC male line?
Answer by: Customer Support on Jan 5, 2026, 9:25 PM
Yes, this straight adapter is made to connect a 3/8-18 female NPT to a 3/4-16 male JIC 37 degree flare.
Question by: Bobby C on Jun 19, 2025, 10:40 AM
got a hose end with 3/8-18 female npt on it, will this adapter let me go over to a 3/4-16 male jic flare?
Answer by: Customer Support on Jun 20, 2025, 3:39 PM
Yes. It is a straight steel adapter with a 3/8-18 female NPTF (internal pipe) on one side and a 3/4-16 male JIC 37 degree flare on the other, so it bridges those two connection types.
Question by: Jimmy P on Aug 31, 2025, 6:45 PM
Got a hydraulic line coming off a pump with a 3/8 female NPT port and I need to connect it to a 3/4-16 JIC fitting on the other end, this the right adapter for that?
Answer by: Customer Support on Sep 2, 2025, 6:28 AM
That's what this one's built for. The female end is 3/8-18 NPT and the male end is 3/4-16 JIC with the standard 37-degree flare seat, so it bridges those two thread types in a single straight adapter. No additional fittings needed in between.

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