Black Washer - 7/16 ID x 13/16 OD Chamfer (1)

The Black Washer - 7/16 ID x 13/16 OD Chamfer is a precision fastener component designed for professional-grade assembly and maintenance applications. This essential hardware piece is suitable for firearms builds, engine work, and tactical equipment restoration, where exact tolerance and reliable load distribution are critical. Whether you're assembling an upper receiver or performing bolt carrier group maintenance, this washer ensures the integrity needed for reliable performance.

Manufactured to ARP specifications, this washer features a 7/16 inner diameter and a 13/16 outer diameter with a chamfered edge design. This design reduces stress concentration, prevents burring of surrounding surfaces, and ensures smooth engagement with mating components. The black oxide finish provides corrosion resistance and low visibility, making it ideal for tactical applications.

Law enforcement armorers, military technicians, and precision rifle builders rely on ARP hardware for upper receiver assemblies and critical load-bearing interfaces. This washer is a small yet vital component that contributes to the overall reliability and performance of tactical and firearms systems.