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

Description & Features

Designed for straight-through connections in demanding industrial environments, the Steel Adapter, 1-11-1/2 Male NPT To 1-1/16-12 Male JIC 37 Deg Flare, Straight from Eaton Aeroquip is part of the 2021 Series and transitions between NPT pipe thread and JIC 37-degree flare fittings without a change in direction. The steel construction suits applications across marine and military, chemical processing, pulp and paper, food and beverage processing, and offshore drilling installations.

With an overall length (A dimension) of 2.25 inches, this adapter is a compact, direct-thread fitting that integrates into standard hydraulic circuits where NPT-to-JIC conversion is required. The Eaton Aeroquip catalog reference for this part is C1AU82.

SKU: 2021-16-12S

Supplier Part Number (MPN): 2021-16-12S

Alternate Part Numbers: 20011359, C1AU82, MI-00310297, MINO-00015F60081

Specifications

a Dimensions
2-1/4 in
Connection Size 1
3/4 in
Connection Size 2
1 in
Connection Type
Male JIC, MNPT
Connection Type 1
Male SAE 37 deg JIC Flare
Connection Type 2
Male NPTF
Dimension Standards
SAE 070102/J514
Dimensions
2-1/4 in L
Finish
Dura-Kote™
Fitting Type
Adapter
Hex Size
1-3/8 in
Material
Steel
Material Construction
Carbon Steel
Operating Temperature
-40
Series
2021 Series
Thread Size
1-1/16-12 x 1-11-1/2

Product Questions & Answers (2)

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Question by: Melvin H on Jan 21, 2026, 8:36 AM
got a 1 inch nptf port on a pump. will this adapter get me over to a jic 37 flare?
Answer by: Customer Support on Jan 22, 2026, 11:32 AM
Yes, it is a straight steel pipe to flare adapter with a 1-11-1/2 male NPTF on one end and a 1-1/16-12 male SAE 37 degree (JIC) flare on the other.
Question by: Lee H on Oct 8, 2025, 7:48 AM
What's the total length of this adapter? Need to make sure it fits in a tight spot.
Answer by: Customer Support on Oct 9, 2025, 2:57 PM
The overall length, dimension A, is 2.25 inches. Make sure that works with your space constraints.

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