Brennan 06 BULKHD LOCK NUT STNLS

Description & Features

Designed for use in bulkhead installations, this 3/8" OD tube stainless steel lock nut provides the clamping force needed to secure bulkhead fittings through panels or enclosures in hydraulic systems. The thread is sized at 9/16-18 and conforms to the Male JIC SAE 37-degree flare standard per SAE J514, making it compatible with standard JIC tube fitting assemblies in that size range.

The Brennan 06 Bulkhd Lock Nut Stnls is manufactured from straight stainless steel, suitable for applications where corrosion resistance is a priority. With a hex dimension of 0.812" and an overall length of 0.270", it is a compact component suited to tight installation envelopes. Part of Brennan Industries' 0306 Series, it is built to consistent dimensional standards expected in fluid power applications. California residents should note the applicable Prop 65 warning associated with this product.

SKU: 0306-06-SS

Supplier Part Number (MPN): 0306-06-SS

Specifications

Brand
BRENNAN
Connection Size 1
3/8 in
Connection Type
JIC
Connection Type 1
SAE 37 deg JIC
Dimension Standards
SAE J514
Dimensions
0.27 in W
Fitting Type
Locknut
Hex Size
0.81 in
Material
Stainless Steel
Material Construction
316/316L Stainless Steel
Series
0306 Series
Thread B1 Drill Dimensions
9/16-18
Thread Size
9/16-18
Tube OD
3/8 in
Tube Outside Diameter
0.38 in

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Product Questions & Answers (1)

Question by: Hubert R on Nov 27, 2025, 12:47 PM
Reckon this lock nut will hold up alright in a hydraulic system where things get kinda corrosive?
Answer by: Customer Support on Nov 28, 2025, 4:21 PM
This 3/8" stainless steel lock nut is made from straight stainless steel, so it's a good choice when you need something that can resist corrosion.

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