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HK Series Industrial Interchange Series B Steel Hydraulic Quick Disconnect, Male Half, -12 Coupling, 3/4-14 Female NPT

A 2.36	Air Inclusion Max 11.50 Cubic_centimeter	Application Agriculture, Hydraulic Tool, General Industry, Construction, Fluid Transfer, Transportation, Military, Law Enforcement/Rescue, Chemical, Oil and Gas, Consumer Products, HVAC, Food and Beverage, Trucks, Aerospace, Medical	Coupling Size -12	Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	End Gender 1 13554	End Gender 2 13555	End Size 1 0.75	End Size 2 0.75	End Type 1 Push to Connect	End Type 2 NPTF	Fluid Loss 9.30 Cubic_centimeter	Minimum Working Temperature -40	Safety locking Mechanism None	Seal Material Buna-N	Supplier Part Number 6KP31	Thread 1 3/4-14	Thread Sealant No	Alternate Part Numbers Alternate Part Number C1LX47, Alternate Part Number MI-06098068, Alternate Part Number MINO-00015X00458	Product Weight 0.41 lbs

Product Questions & Answers 1

Product Questions & Answers

seal material on these, is it just buna-n or can you get something different? running hydraulic fluid that gets pretty warm and want to make sure it holds up

Question by: Jimmy H on Feb 17, 2026, 6:37 PM

Buna-N is the standard seal that comes with it, rated from -40°F up to 250°F, which covers most hydraulic fluid applications just fine. If your temps push past that, there are options available in Neoprene, EPDM, FKM, and Kalrez. FKM runs up to 400°F and EPDM tops out at 300°F, so depending on how hot things get, you've got room to move up.

Answer by: Customer Support on Feb 19, 2026, 6:13 AM