Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Knox Trailers · Hardware & Fasteners
261A-4
In stock · ships from Knoxville
This is a brass compression nut for 1/4″ outside diameter tubing, commonly used in heavy-duty truck and trailer air brake systems.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It threads onto a mating fitting body to secure nylon or copper air lines, creating a leak‑tight seal. The nut is a standard DOT/SAE J246 component, often replaced when threads are damaged or when rebuilding air line connections. It suits virtually any commercial vehicle with 1/4″ air brake tubing.
Part Number: 261A-4
NUTS
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
