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Male Connector

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Description & Features

Built for demanding industrial environments, this Eaton Aeroquip Male Connector is a straight adapter combining a 3/8" NPTF male end with an SAE 37° male flare, conforming to SAE 070102 certification standards. Constructed from carbon steel with Dura-Kote plating, it delivers superior corrosion resistance suited to harsh or chemically aggressive service conditions.

Rated for operating pressures above standard SAE thresholds, this fitting is well matched to applications across marine, military, chemical processing, pulp and paper, food and beverage processing, and off-shore drilling environments. The 2021 Series design offers broad configuration flexibility within the Aeroquip adapter family. A minimum working temperature of -40° makes it suitable for cold-climate and cryogenic-adjacent service.

SKU: 2021-6-12S

Supplier Part Number (MPN): 2021-6-12S

Specifications

Connection Size 1
3/4 in
Connection Size 2
3/8 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
1-3/4 in L
Finish
Dura-Kote™
Fitting Type
Adapter
Material
Steel
Material Construction
Carbon Steel
nmfc
50
Operating Temperature
-40
Series
2021 Series
Thread Size
1-1/16-12 x 3/8-18

Product Questions & Answers (3)

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Question by: Neil M on Apr 9, 2025, 5:18 PM
does this adapter go from NPTF on one end to a 37 degree flare on the other, or am I reading that wrong?
Answer by: Customer Support on Apr 11, 2025, 6:15 AM
You're reading it right. One end is NPTF male at 3/8 inch, and the other end is SAE 37 degree flare male. It's a straight configuration, so there's no angle or offset to account for during installation. Pretty common setup when you're connecting pipe thread to a flare fitting in the same line.
Question by: Patty D on Feb 9, 2026, 7:42 AM
So this thing'll hold up if I'm runnin' hydraulic fluid through it all day long?
Answer by: Customer Support on Feb 11, 2026, 6:44 AM
This Eaton Aeroquip adapter uses Dura-Kote plating, which offers superior corrosion resistance. That makes it suitable for continuous use with hydraulic fluids, even in demanding environments.
Question by: Wes T on Jan 7, 2026, 8:13 AM
trying to swap out an old straight adapter, is this one the kind that goes from NPTF male to a 37 degree SAE flare?
Answer by: Customer Support on Jan 9, 2026, 6:22 AM
It connects an NPTF male pipe thread on one end to an SAE 37° male flare on the other, in a straight adapter layout.

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