SKU: AERFCM2965
UPC: 678146007315
MPN: FCM2965
The AEROQUIP -6AN to 11/16-18 I/F Steel Adapter Fitting is a precision hydraulic and fuel line adapter designed to connect two dissimilar thread sizes in high-pressure fluid systems. This straight steel adapter bridges a -6 AN male port to an 11/16-18 inch inverted flare male fitting, making it essential for custom hydraulic installations, fuel system modifications, and pressure line repairs across automotive, marine, and industrial applications. The zinc oxide finish provides corrosion resistance in demanding environments where moisture and chemical exposure are concerns.
Manufactured by AEROQUIP—a recognized leader in hydraulic connectors and fluid line systems—this adapter features steel construction rated for demanding pressure applications. The -6 AN (AN6) size corresponds to a 3/8-inch hose outside diameter, while the 11/16-18 inverted flare thread is a standard metric conversion fitting common in OEM hydraulic systems. The straight configuration minimizes turbulence and pressure drop, critical factors in fuel delivery and brake systems where flow consistency directly affects performance and safety. Compact dimensions and minimal weight make integration straightforward in space-constrained engine bays and equipment compartments.
This adapter serves technicians, fabricators, and system integrators who require reliable fluid line connections without proprietary hose assemblies. Common applications include custom fuel system routing, brake line adaptation, hydraulic power steering modifications, and pressure gauge installation. The inverted flare thread type demands proper seating to prevent leaks under pressure, making this fitting suitable for users experienced with fluid line installation and pressure testing procedures.
Adapter fittings like this one solve compatibility challenges when OEM or aftermarket components use different connection standards. The AEROQUIP brand carries established credibility in the hydraulics and fuel systems industry, backed by consistent manufacturing tolerances and materials specifications that support system integrity under sustained pressure loads.
WARNING ⚠️
You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Purchasing a Firearm? Click HERE to see our firearm purchasing guide.
