SAME DAY SHIPPING
— Order by 2pm EST.
Toggle Nav
Cart
Search
main product photo

06MORB EXTERNAL HEX PLUG

Ask A Question

Description & Features

The 06MORB External Hex Head Plug by Brennan Industries Inc. features a male SAE O-ring boss thread conforming to SAE J514 specifications. This external hex plug constructed from straight steel has an overall length of 0.730 mm and is equipped with an NBR seal material.

The 06MORB external hex head plug is engineered for secure and reliable connections in industrial applications. Its primary thread size is 9/16-18 ensuring compatibility with a range of equipment that adheres to SAE J514 thread specification standards.

The series 6408-O product guarantees durability and performance thanks to its robust steel construction and precise threading. Designed for ease of use in demanding environments this hex head plug offers significant utility in maintaining effective system performance.

Supplier Part Number: 6408-06-O

Specifications

Brand
BRENNAN
Connection Size 1
3/8 in
Connection Type
Male SAE ORB
Connection Type 1
Male SAE ORB
Dimension Standards
SAE J1926, SAE J514
Dimensions
0.73 in L
Finish
Trivalent Zinc-Plated
Fitting Type
Plug
Hex Size
11/16 in
Material
Steel
Material Construction
AISI 12L14/1045 Steel
Maximum Operating Pressure
6000 psi
Operating Temperature
-40 to 250 deg F
Seal Material
NBR
Series
6408-O Series
Thread B1 Drill Dimensions
0.297 in
Thread Size
9/16-18

Product Questions & Answers (3)

Question by: Lance H on Apr 12, 2025, 5:02 PM
thread on this plug is 9/16-18 male SAE O-ring boss -- that's the right fit for SAE J514 ports, yeah?
Answer by: Customer Support on Apr 14, 2025, 2:09 PM
Correct on both counts. The 9/16-18 thread is male SAE O-ring boss, and it conforms to SAE J514 specification. If your port is sized and threaded to that standard, this plug is a direct match. The NBR O-ring seal is already part of the assembly, so you're not hunting down a separate seal to make the connection work.
Question by: Kirk B on Aug 23, 2025, 8:52 PM
Will this plug work with any SAE J514 fitting?
Answer by: Customer Support on Aug 25, 2025, 6:07 AM
It's designed to work specifically with male SAE O-ring boss threads conforming to the SAE J514 specification. Compatibility outside of that isn't guaranteed.
Question by: Todd M on Dec 27, 2025, 6:23 PM
got a port with a 9/16-18 SAE o-ring boss thread, is this the right plug for it
Answer by: Customer Support on Dec 29, 2025, 8:42 AM
For a 9/16-18 male SAE O-ring boss connection built to SAE J514, this plug matches that thread type and spec. It uses an NBR O-ring seal and has an external hex head so you can cap off that style of port.

Tell us what you need and we'll get back to you.

Fields marked * are required.