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05 Standard Nut

Description & Features

Designed for use with 5/16 in. OD tubing, this JIC long tube nut connects to a 1/2-20 thread and conforms to SAE J514. Manufactured from straight steel, it measures 1.060 in. in overall length with a 0.625 in. hex, making it suited for standard hydraulic tube fitting assemblies where a long nut configuration is specified.

The 05 Standard Nut is part of Brennan Industries' 0304 series and is intended for use in hydraulic systems requiring reliable JIC-style tube connections. California residents should note that this product is subject to Prop 65 requirements.

SKU: 0304-05

Supplier Part Number (MPN): 0304-05

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 0304-05	Product Weight 0.04 lbs

Product Questions & Answers (3)

Question by: Harold H on Jan 26, 2026, 9:40 PM

Will this nut work with any kind of steel tubing?

Answer by: Customer Support on Jan 28, 2026, 9:37 AM

It's made for use with 5/16 in. OD tubing and connects to a 1/2-20 thread, conforming to SAE J514 standards. The nut itself is straight steel.

Question by: Diane R on Jun 11, 2025, 2:58 PM

got a stick of 5/16 OD tube here, will this long nut match up with it or am I barking up the wrong tree

Answer by: Customer Support on Jun 13, 2025, 9:24 AM

For 5/16 in. OD tubing, this nut is the correct match. It is a JIC long tube nut with a 1/2-20 thread and it conforms to SAE J514, which is the standard used for JIC-style tube fitting connections.

Question by: Chad A on Sep 30, 2025, 3:30 PM

Got a tube fitting job coming up and need to confirm, this nut work with 5/16 OD tubing on a 1/2-20 thread?

Answer by: Customer Support on Oct 2, 2025, 6:02 AM

That's what it's built for. The 0304-05 is a JIC long tube nut sized for 5/16 inch OD tubing and it threads onto a 1/2-20 connection. It conforms to SAE J514, so it'll fit right into standard JIC hydraulic tube fitting assemblies without any issue.