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

Description & Features

Engineered for reliability the brass adapter seamlessly connects 1/2-14 male NPT to 3/4-16 male JIC 37-degree flare fittings. Manufactured by Danfoss Power Solutions (II LLC Aeroquip) this adapter offers robustness and precision in fluid transfer applications. Designed specifically for industrial use its high-quality brass construction ensures durability under varying temperature conditions maintaining functionality from -40F upwards.

The Eaton Aeroquip adapter features male NPTF and SAE 37 terminations providing a secure and leak-free connection. The 1/2-inch tube outside diameter and 3/4-inch threading make it suitable for diverse engineering setups. This straight adapter excels in environments where dependability and adherence to standards are paramount.

MPN: EAR99

Supplier Part Number: 2021-8-8B

Specifications

A 1.79	Alternate Part Numbers Alternate Part Number C1AV34, Alternate Part Number MI-00310604, Alternate Part Number MINO-00015F60170	Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	End Gender 1 13554	End Gender 2 13556	End Size 1 0.50	End Size 2 0.75	End Type 1 NPTF	End Type 2 SAE 37	Minimum Working Temperature -40	Supplier Part Number 2021-8-8B	Thread 1 1/2-14	Thread 2 3/4-16	Thread Sealant No	Tube O.D. 0.50	Tube O.D. 0.5	Product Weight 0.19 lbs

Similar Products

Model Number	Tube O.D.	Thread 1	Thread 2	A
2021-4-6B Brass Male NPT To JIC Adapter	0.38	1/4-18	9/16-18	1.43
2021-12-12B Brass Male NPT To JIC Adapter	0.75	3/4-14	1-1/16-12	2.06
2021-12-16B Brass Male NPT To JIC Adapter	1	3/4-14	1-5/16-12	2.11
2021-16-16B Brass Male NPT To JIC Adapter	1	1-11-1/2	1-5/16-12	2.3
2021-20-20B Brass Male NPT To JIC Adapter	1.25	1-1/4-11-1/2	1-5/8-12	2.45
2021-4-4B Brass Male NPT To JIC Adapter	0.25	1/4-18	7/16-20	1.42
2021-6-6B Brass Male NPT To JIC Adapter	0.38	3/8-18	9/16-18	1.43
2021-6-8B Brass Male NPT To JIC Adapter	0.5	3/8-18	3/4-16	1.53
2021-8-10B Brass Male NPT To JIC Adapter	0.63	1/2-14	7/8-14	1.89
2021-8-12B Brass Male NPT To JIC Adapter	0.75	1/2-14	1-1/16-12	2.06
2021-8-6B Brass Male NPT To JIC Adapter	0.38	1/2-14	9/16-18	1.69

Product Questions & Answers (2)

Question by: Brenda R on Mar 23, 2026, 3:59 PM

Trying to swap out an old fitting, is this the straight adapter that goes from 1/2-14 male NPT over to a -8 JIC male flare?

Answer by: Customer Support on Mar 25, 2026, 7:35 AM

For a straight male-to-male connection, it matches 1/2-14 male NPTF on one end and 3/4-16 male SAE 37 degree (JIC) flare on the other, which is the common -8 JIC thread size.

Question by: Bonnie B on Apr 16, 2025, 9:17 AM

brass fitting here, does this one go from a half-inch NPT thread on one end to a 3/4-16 JIC flare on the other, or did I read that backwards?

Answer by: Customer Support on Apr 18, 2025, 6:48 AM

You've got it right. The NPT side is 1/2-14 male and the JIC side is 3/4-16 male with a 37-degree flare. Both ends are male, so you'd be threading this into female ports on each side of your connection. Straight configuration, no angle to it.

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

Description & Features

Specifications

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Product Questions & Answers (2)