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Din Bulkhead Union

Description & Features

Manufactured from steel in a straight configuration, this DIN Bulkhead Union provides a same-size, through-panel connection for DIN tube lines on both sides. Both connection points carry an M52 x 2.0 thread with an L42 tube size, making this a symmetric union suited for routing hydraulic lines through bulkhead panels or structural dividers in industrial equipment and mobile machinery.

Supplied by Adaptall, the fitting measures 77mm in overall length, with a 36mm length on the mounting side and a 19mm length on the secondary side. The hex widths of 60mm and 65mm across the two connection points allow for standard wrench engagement during installation. Its steel construction provides the durability expected in demanding hydraulic environments.

SKU: 5040L-42

Supplier Part Number (MPN): 5040L-42

Specifications

CH1 Width 60mm	CH2 Width 65mm	L1 Length 77mm	L2 Length 19mm	L3 Length 36mm	Adaptall Material Steel	Adaptall Shape Straight	Side 1 Callout M52 X 2.0	Side 1 Gender M	Side 1 Size L42	Side 1 Type Din Tube	Side 2 Callout M52 X 2.0	Side 2 Gender M	Side 2 Size L42	Side 2 Type Din Tube	Brand Adaptall America	Brand Adaptall	Pack Size 1.00	UOM EA	Supplier Part Number 5040L-42	Product Weight 1.67 lbs

Product Questions & Answers (1)

Question by: Keith T on Feb 18, 2026, 7:35 PM

trying to run a DIN tube line through a panel, is this the kind of bulkhead fitting that’s the same size on both sides?

Answer by: Customer Support on Feb 20, 2026, 6:38 AM

For a through-panel connection where both sides stay the same size, this union fits that job. It is a straight steel DIN bulkhead union with M52 x 2.0 male threads on both ends, and both sides are DIN tube size L42.