Ensure a perfect seal with Aeromotive's 12AN Nylon Washers. Engineered from high-quality nylon, these washers provide exceptional sealing performance in automotive and fuel system applications. With a precise outer diameter of 1.377 inches, an inner diameter of 1.15 inches, and a thickness of 0.06 inches, these washers are designed to meet your demanding requirements. Ideal for use in a variety of fastening solutions, these washers are a must-have for any automotive enthusiast or professional.