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5600 Series Industrial Interchange Quick Disconnect, Female Half, -06 Coupling, 3/8-18 Female Pipe

A 2.09	Air Inclusion Max 1.50 Cubic_centimeter	Application Hydraulic fluid transfer, Agricultural equipment, Construction equipment, In-plant manufacturing, Dump, snow plow and maintainance vehicles	B 1.27	Coupling Size -06	Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	End Gender 1 13553	End Gender 2 13555	End Size 1 0.38	End Size 2 0.38	End Type 1 Push to Connect	End Type 2 NPT	Fluid Loss 1.30 Cubic_centimeter	Minimum Working Temperature -40	Rated Flow 6	Rated Flow 6	Seal Material Buna-N	Seal Part if Included 22550-115	Supplier Part Number 5601-6-6S	Thread 1 3/8-18	Thread Sealant No	Alternate Part Numbers Alternate Part Number C1BS98, Alternate Part Number MI-06910886, Alternate Part Number MINO-00015X45481	Product Weight 0.37 lbs

Product Questions & Answers 5

Product Questions & Answers

seal material on this one, is it buna-n or do I need to spec something different for standard hydraulic fluid?

Question by: Rusty S on Oct 12, 2025, 3:53 PM

Buna-N is the standard seal on this coupling, and it holds up well with most conventional hydraulic fluids. For typical petroleum-based hydraulic oil, you're in good shape right out of the box. The product line does also come in EPR and Viton options if your fluid ever calls for something different, but for everyday hydraulic fluid transfer, the Buna-N seal is what most folks are running without any issues.

Answer by: Customer Support on Oct 13, 2025, 6:16 PM

Will this fit my tractor's hydraulic line? It's a standard 3/8" NPT.

Question by: Ronnie C on Jan 20, 2026, 7:10 PM

This female quick disconnect coupling is indeed equipped with a 3/8-18 female NPT thread, so if your tractor line uses a standard male 3/8" NPT, it should fit right up.

Answer by: Customer Support on Jan 22, 2026, 7:58 AM

got an old -06 socket half on a hose with 3/8-18 pipe threads, is this the right female coupler to swap in?

Question by: Sheila B on Feb 7, 2026, 5:32 PM

It matches a -06 coupling size with a 3/8-18 female pipe (NPT) threaded end, and it is the female half (socket) of the 5600 Series Industrial Interchange style that conforms dimensionally to ISO 7241/1 Series A.

Answer by: Customer Support on Feb 9, 2026, 4:26 PM

Does this coupling need thread sealant when you're threading it into a female pipe port, or is it good to go as-is?

Question by: Wade H on Dec 16, 2025, 10:56 AM

No sealant is required on the NPT end. The 3/8-18 female pipe thread is the connection point on the back end, and the fitting is ready to install without tape or compound. Just make sure the mating port is clean and in good shape before you torque it in.

Answer by: Customer Support on Dec 18, 2025, 6:01 AM

Will this quick disconnect work for hydraulic fluid on my tractor?

Question by: Rod W on Jun 11, 2025, 7:14 AM

This 5600 series coupling is designed for hydraulic fluid transfer applications, making it suitable for agricultural equipment like tractors.

Answer by: Customer Support on Jun 12, 2025, 7:58 PM

Similar Products

Model Number	Coupling Size	Thread 1	Seal Material	A	B
5601-4-4S	-04	1/4-18	Buna-N	1.81	1.08
5601-6-6S	-06	3/8-18	Buna-N	2.09	1.27
5601-8-10S	-10	1/2-14	Buna-N	2.76	1.52
5601-12-10S	-10	3/4-14	Buna-N	2.91	1.52
5601-12-12S	-12	3/4-14	Buna-N	3.25	1.84
5601-16-16S	-16	1-11-1/2	Buna-N	4.09	2.15
5601-2-4S	-04	1/8-27	Buna-N	1.81	1.08