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Power Products · Hardware & Fasteners
FN300
In stock · ships from Knoxville
The FN300 is a straight brass frame pipe nipple, also called a bulkhead fitting.
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Verified fitment for 1 applications
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Universal fit
Designed as a universal bulkhead fitting for medium- and heavy-duty truck and trailer air brake/air systems. Not application-specific; fitment depends on frame hole size and thread matching. Always confirm diameter, thread type, and bulkhead thickness before installation to ensure proper fit and avoid air leaks.
Part data verified against 4 catalog sources
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It's a plumbing connector used to pass an air line through a truck or trailer frame rail, creating a secure, sealed bulkhead point. You'd replace it if you find air leaks at the frame pass-through, notice corrosion on the old fitting, or are rebuilding air lines and need a reliable, corrosion-resistant brass connection that fits properly in the frame hole. The 2.88-inch length and 1/2-inch by 1/4-inch thread combination fits many common heavy-duty air system setups.
Part Number: FN300
2.88 STRAIGHT BRASS FRAME NIPPLE
Unit: ea
Dealer: KP Services Crossville
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