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12FJ-08MJ STRAIGHT REDUCER

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Description & Features

The 12FJ-08MJ Straight Reducer is a versatile component crafted from straight steel, designed to meet the demanding specifications of SAE J514. This durable adapter features a female JIC SAE 37-degree flare at one end with a thread size of 1-1/16-12 and a male JIC SAE 37-degree flare at the other end with a thread size of 3/4-16.

Measuring 1.680mm in overall length, this reducer ensures precise connections in industrial equipment. Ideal for use in hydraulics and other technical applications, it provides reliable performance and enduring quality.

Its robust construction and adherence to industry standards make it a critical fitting for various machinery and equipment.

Supplier Part Number: 2406-12-08

Specifications

Connection Size 1
3/4 in
Connection Size 2
1/2 in
Connection Type
Female JIC, Male JIC
Connection Type 1
Female SAE 37 deg JIC Flare
Connection Type 2
Male SAE 37 deg JIC Flare
Dimension Standards
SAE J514
Dimensions
1.56 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Reducer
Hex Size
1-1/4
l Dimensions
1.68 in
Material
Steel
Material Construction
12L14/C1045 Steel
Maximum Operating Pressure
5000 psi
Series
2406 Series
Thread 2 Drill Dimensions
0.391 in
Thread B1 Drill Dimensions
0.609 in
Thread Size
3/4-16 x 1-1/16-12

Product Questions & Answers (2)

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Question by: Shane J on Jan 21, 2026, 12:24 PM
got a hose end thats 1-1/16-12 female JIC, will this step it down to 3/4-16 male JIC?
Answer by: Customer Support on Jan 22, 2026, 8:21 PM
For adapting between two JIC 37 degree flare sizes, it goes from a 1-1/16-12 female JIC SAE 37 degree flare on one end to a 3/4-16 male JIC SAE 37 degree flare on the other, both built to SAE J514.
Question by: Ross P on Oct 28, 2025, 11:05 AM
Thread sizes on this one got me second-guessing myself, the female end is 1-1/16-12 and the male end is 3/4-16, that right?
Answer by: Customer Support on Oct 30, 2025, 7:19 AM
that's correct. The larger female JIC end runs 1-1/16-12 and the male JIC end on the other side is 3/4-16. Both ends use the SAE 37-degree flare configuration and are built to SAE J514 spec, so as long as your existing fittings match those thread sizes and flare type, you're good to go.

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