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08MFS-18MM STRAIGHT W/CAPTIVE SEAL

Description & Features

Designed for connecting SAE face seal ports to metric hydraulic lines, the 08MFS-18MM Straight with Captive Seal is a straight steel adapter from Brennan Industries' FS7701-ED series. The male face seal end threads at 13/16-16 per SAE J1453, while the opposing male metric end is M18x1.5, compatible with ISO 9974 ports. The captive NBR O-ring seal on the metric end provides reliable sealing without requiring a separate seal component during installation.

Constructed from straight steel, this fitting suits hydraulic systems where a leak-free transition between SAE and metric port standards is required. The NBR seal material offers good compatibility with a wide range of hydraulic fluids. California residents should note that this product is subject to Proposition 65 warning requirements.

SKU: FS7701-08-18

Supplier Part Number (MPN): FS7701-08-18

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number FS7701-08-18	Product Weight 0.16 lbs

Product Questions & Answers (1)

Question by: Glen H on Nov 11, 2025, 6:23 AM

So this thing connects a SAE face seal to a metric line, right? Just want to make sure I'm understanding that correctly.

Answer by: Customer Support on Nov 12, 2025, 5:21 PM

That's right, this adapter is designed to connect SAE face seal ports to metric hydraulic lines, making the transition between the two standards leak-free.