Description
AirCraft Metal Bulkhead Straight Connector 4mm
At a Glance: Panel-mount (bulkhead) straight push-in connector for 4mm PU tubing
The AirCraft SG APM04 Metal Bulkhead Straight Connector 4mm is made for clean, professional pneumatic installations where an air line needs to pass through a panel, enclosure or machine wall. With a durable metal bulkhead body and push-in connections on both sides, it creates a secure through-panel connection for 4mm polyurethane (PU) tubing—perfect for control boxes, spray booths, machinery guards and workshop air setups that need a tidy, serviceable finish.
This straight bulkhead connector clamps firmly through a panel using lock nuts, giving you a solid mounting point and a clean tube entry/exit on both sides. It’s an excellent option when you want to protect tubing, reduce snagging, and make your pneumatic layout easier to maintain.






