Skip to the beginning of the images gallery

10FFSS-12MJ STRAIGHT

Description & Features

A straight face seal fitting designed for connecting 3/4 inch OD tube (JIC male) to a 5/8 inch OD tube (female face seal) end, the 10FFSS-12MJ Straight from Brennan Industries is built for reliable performance in hydraulic line connections where leak-free face seal integrity is required. The straight configuration simplifies in-line routing where directional changes are not needed.

Thread sizes are 1-1/16-12 on the male JIC end and 1-14 on the female face seal end, with a hex dimension of 1.125 inches on both ends and an overall length of 2.354 inches. Part of Brennan's FS6504 series, this fitting is suited for medium- to high-pressure hydraulic systems where a secure metal-to-metal seal is essential.

SKU: FS6504-10-12

Supplier Part Number (MPN): FS6504-10-12

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number FS6504-10-12	Product Weight 0.99 lbs

Product Questions & Answers (1)

Question by: Frank W on Nov 12, 2025, 4:49 PM

Will this fitting hold up in a hydraulic system that sees some pretty high pressure, or am I gonna be chasing leaks?

Answer by: Customer Support on Nov 14, 2025, 6:21 AM

Designed for medium- to high-pressure hydraulic systems, this fitting is built to provide a secure, metal-to-metal seal which is essential in those kinds of applications.