New OEM Genuine Boeing, Spacer - Part # 6391K403

Explore Authenticity:
Our store exclusively offers genuine, original equipment. Each item, including this featured product, is an authentic OEM (Original Equipment Manufacturer) product.

Our Brands:

Boeing (Commercial & Military) – Authentic parts for a wide range of Boeing models.
ITT Aerospace – Premium‑quality components for aerospace applications.

Discover the Extensive Range:
Our inventory features over 60,000 original products, including items that are now obsolete or no longer stocked. Our collection encompasses both commercial and military brands, offering everything from simple screws to wire harnesses, avionics, hoses, and hydraulic systems.

Assurance in Quality:
Every product we offer is a brand‑new, authentic component. We uphold the highest standards in quality assurance, sourcing each item directly from the OEM to guarantee authenticity. Most items arrive in sealed OEM packaging.

Exceptional Customer Service:
Our dedicated team is committed to providing excellent service. Please allow 2–3 business days for a response to your image request. The images will be sent to the email provided and promptly updated on the website.