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20BORE-20MJ STRAIGHT

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Description & Features

Constructed by Brennan Industries Inc this adapter is precisely designed for industrial applications requiring exact specifications. It features a straight steel raw material type ensuring durability and reliability in demanding environments. With an overall length of 1.450 mm and a secondary length of 0.492 mm it is suitable for applications such as hydraulic and pneumatic systems.

Thread B1 size measures at 1-1/4 1-1/4 categorized as BORE while Thread B2 size of 1 5/8-12 follows SAE J514 specifications with a Male JIC SAE 37-degree flare design. These specific thread types and sizes contribute to the adapter's compatibility and secure connectivity in mechanical systems.

**Supplier Part Number:** 0403-20-20

**MPN:** 0403-20-20

**California Residents:** PROP-65 WARNING

Specifications

Connection Size 1
1-1/4 in
Connection Size 2
1-1/4 in
Connection Type
Bore, Male JIC
Connection Type 1
Bore
Connection Type 2
Male SAE JIC
Dimension Standards
SAE J514
Dimensions
1.453 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Adapter
Hex Size
1.688 in
l2 Dimensions
0.492 in
Material
Steel
Material Construction
1018/1020 Steel
Maximum Operating Pressure
4000 psi
Series
0403 Series
Thread 2 Drill Dimensions
1.078 in
Thread B1 Drill Dimensions
1.256 in
Thread Size
1-5/8-12
Tube Outside Diameter
1-1/4 in

Product Questions & Answers (1)

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Question by: Peggy B on Aug 13, 2025, 8:06 PM
what exactly is the bore end on this adapter, is that a port thread or does it connect to a tube directly?
Answer by: Customer Support on Aug 15, 2025, 7:48 PM
The B1 end is a bore type connection with a 1-1/4 inch tube OD and a drill diameter of 1.256 mm. That end accepts a tube directly rather than threading into a port. The B2 end is a 1 5/8-12 Male JIC fitting with a 37-degree flare, built to SAE J514 spec. So you've got a bore connection on one side and a standard JIC male on the other, which is a pretty common pairing when you're transitioning between tube and flared fittings in a hydraulic line.

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