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12MJ-12FJS STRAIGHT

Description & Features

The 12MJ-12FJS Straight adapter from Brennan Industries Inc is engineered with precision for industrial applications. Designed with a male JIC SAE 37-degree flare and a female JIC swivel 37-degree flare, this adapter conforms to SAE J514 specifications, ensuring reliable and accurate connections.

Manufactured from high-quality straight steel, it features a robust design with a C Hex 1 size of 1.250 mm and an overall length of 2.330 mm. The device supports a thread size of 1-1/16-12 for both male and female configurations. Both thread types boast a drill size of 0.609 mm for optimal performance.

Series: 6504

Supplier Part Number: 6504-12-12

California Residents: PROP-65 WARNING

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 6504-12-12	Product Weight 0.37 lbs

Product Questions & Answers (3)

Question by: Ralph M on Feb 18, 2026, 8:30 PM

thread size on both ends is 1-1/16-12 on this one, right? just want to make sure before i order a handful of em

Answer by: Customer Support on Feb 20, 2026, 4:09 PM

Both ends run the same 1-1/16-12 thread, so you've got it right. One side is a male JIC 37-degree flare and the other is a female JIC swivel with the same 37-degree flare angle. Both conform to SAE J514, so they'll mate up with standard JIC fittings on either end.

Question by: Travis R on Jan 30, 2026, 9:51 PM

got a hose with a 1-1/16-12 JIC male on it. will this adapter hook that up to a female JIC swivel end?

Answer by: Customer Support on Feb 1, 2026, 9:19 AM

With a male JIC SAE 37 degree flare on one side and a female JIC swivel 37 degree flare on the other, it is meant to mate JIC 37 degree flare connections that share the 1-1/16-12 thread size. Both ends on this adapter are SAE J514 JIC flare style.

Question by: Tommy W on Jun 7, 2025, 9:27 PM

So, this is just a straight adapter, right? No weird angles or anything?

Answer by: Customer Support on Jun 9, 2025, 10:45 AM

That's correct. This 12MJ-12FJS is a straight adapter designed for connecting two JIC SAE 37-degree flare fittings in a straight line.